; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=x86_64-darwin-unknown < %s | FileCheck %s --check-prefix=SDAG --check-prefix=GENERIC ; RUN: llc -mtriple=x86_64-darwin-unknown -fast-isel -fast-isel-abort=1 < %s | FileCheck %s --check-prefix=FAST ; RUN: llc -mtriple=x86_64-darwin-unknown -mcpu=knl < %s | FileCheck %s --check-prefix=SDAG --check-prefix=KNL ; ; Get the actual value of the overflow bit. ; ; SADDO reg, reg define zeroext i1 @saddoi8(i8 signext %v1, i8 signext %v2, i8* %res) { ; SDAG-LABEL: saddoi8: ; SDAG: ## %bb.0: ; SDAG-NEXT: addb %sil, %dil ; SDAG-NEXT: seto %al ; SDAG-NEXT: movb %dil, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi8: ; FAST: ## %bb.0: ; FAST-NEXT: addb %sil, %dil ; FAST-NEXT: seto %al ; FAST-NEXT: movb %dil, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 %v1, i8 %v2) %val = extractvalue {i8, i1} %t, 0 %obit = extractvalue {i8, i1} %t, 1 store i8 %val, i8* %res ret i1 %obit } define zeroext i1 @saddoi16(i16 %v1, i16 %v2, i16* %res) { ; SDAG-LABEL: saddoi16: ; SDAG: ## %bb.0: ; SDAG-NEXT: addw %si, %di ; SDAG-NEXT: seto %al ; SDAG-NEXT: movw %di, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi16: ; FAST: ## %bb.0: ; FAST-NEXT: addw %si, %di ; FAST-NEXT: seto %al ; FAST-NEXT: movw %di, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i16, i1} @llvm.sadd.with.overflow.i16(i16 %v1, i16 %v2) %val = extractvalue {i16, i1} %t, 0 %obit = extractvalue {i16, i1} %t, 1 store i16 %val, i16* %res ret i1 %obit } define zeroext i1 @saddoi32(i32 %v1, i32 %v2, i32* %res) { ; SDAG-LABEL: saddoi32: ; SDAG: ## %bb.0: ; SDAG-NEXT: addl %esi, %edi ; SDAG-NEXT: seto %al ; SDAG-NEXT: movl %edi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi32: ; FAST: ## %bb.0: ; FAST-NEXT: addl %esi, %edi ; FAST-NEXT: seto %al ; FAST-NEXT: movl %edi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, i32* %res ret i1 %obit } define zeroext i1 @saddoi64(i64 %v1, i64 %v2, i64* %res) { ; SDAG-LABEL: saddoi64: ; SDAG: ## %bb.0: ; SDAG-NEXT: addq %rsi, %rdi ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rdi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi64: ; FAST: ## %bb.0: ; FAST-NEXT: addq %rsi, %rdi ; FAST-NEXT: seto %al ; FAST-NEXT: movq %rdi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; SADDO reg, 1 | INC define zeroext i1 @saddoinci8(i8 %v1, i8* %res) { ; SDAG-LABEL: saddoinci8: ; SDAG: ## %bb.0: ; SDAG-NEXT: incb %dil ; SDAG-NEXT: seto %al ; SDAG-NEXT: movb %dil, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoinci8: ; FAST: ## %bb.0: ; FAST-NEXT: incb %dil ; FAST-NEXT: seto %al ; FAST-NEXT: movb %dil, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 %v1, i8 1) %val = extractvalue {i8, i1} %t, 0 %obit = extractvalue {i8, i1} %t, 1 store i8 %val, i8* %res ret i1 %obit } define zeroext i1 @saddoinci16(i16 %v1, i16* %res) { ; SDAG-LABEL: saddoinci16: ; SDAG: ## %bb.0: ; SDAG-NEXT: incw %di ; SDAG-NEXT: seto %al ; SDAG-NEXT: movw %di, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoinci16: ; FAST: ## %bb.0: ; FAST-NEXT: incw %di ; FAST-NEXT: seto %al ; FAST-NEXT: movw %di, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i16, i1} @llvm.sadd.with.overflow.i16(i16 %v1, i16 1) %val = extractvalue {i16, i1} %t, 0 %obit = extractvalue {i16, i1} %t, 1 store i16 %val, i16* %res ret i1 %obit } define zeroext i1 @saddoinci32(i32 %v1, i32* %res) { ; SDAG-LABEL: saddoinci32: ; SDAG: ## %bb.0: ; SDAG-NEXT: incl %edi ; SDAG-NEXT: seto %al ; SDAG-NEXT: movl %edi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoinci32: ; FAST: ## %bb.0: ; FAST-NEXT: incl %edi ; FAST-NEXT: seto %al ; FAST-NEXT: movl %edi, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 1) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, i32* %res ret i1 %obit } define zeroext i1 @saddoinci64(i64 %v1, i64* %res) { ; SDAG-LABEL: saddoinci64: ; SDAG: ## %bb.0: ; SDAG-NEXT: incq %rdi ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rdi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoinci64: ; FAST: ## %bb.0: ; FAST-NEXT: incq %rdi ; FAST-NEXT: seto %al ; FAST-NEXT: movq %rdi, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 1) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; SADDO reg, imm | imm, reg define zeroext i1 @saddoi64imm1(i64 %v1, i64* %res) { ; SDAG-LABEL: saddoi64imm1: ; SDAG: ## %bb.0: ; SDAG-NEXT: addq $2, %rdi ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rdi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi64imm1: ; FAST: ## %bb.0: ; FAST-NEXT: addq $2, %rdi ; FAST-NEXT: seto %al ; FAST-NEXT: movq %rdi, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 2, i64 %v1) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; Check boundary conditions for large immediates. define zeroext i1 @saddoi64imm2(i64 %v1, i64* %res) { ; SDAG-LABEL: saddoi64imm2: ; SDAG: ## %bb.0: ; SDAG-NEXT: addq $-2147483648, %rdi ## imm = 0x80000000 ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rdi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi64imm2: ; FAST: ## %bb.0: ; FAST-NEXT: addq $-2147483648, %rdi ## imm = 0x80000000 ; FAST-NEXT: seto %al ; FAST-NEXT: movq %rdi, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 -2147483648) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } define zeroext i1 @saddoi64imm3(i64 %v1, i64* %res) { ; SDAG-LABEL: saddoi64imm3: ; SDAG: ## %bb.0: ; SDAG-NEXT: movabsq $-21474836489, %rcx ## imm = 0xFFFFFFFAFFFFFFF7 ; SDAG-NEXT: addq %rdi, %rcx ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rcx, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi64imm3: ; FAST: ## %bb.0: ; FAST-NEXT: movabsq $-21474836489, %rax ## imm = 0xFFFFFFFAFFFFFFF7 ; FAST-NEXT: addq %rdi, %rax ; FAST-NEXT: seto %cl ; FAST-NEXT: movq %rax, (%rsi) ; FAST-NEXT: andb $1, %cl ; FAST-NEXT: movzbl %cl, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 -21474836489) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } define zeroext i1 @saddoi64imm4(i64 %v1, i64* %res) { ; SDAG-LABEL: saddoi64imm4: ; SDAG: ## %bb.0: ; SDAG-NEXT: addq $2147483647, %rdi ## imm = 0x7FFFFFFF ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rdi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi64imm4: ; FAST: ## %bb.0: ; FAST-NEXT: addq $2147483647, %rdi ## imm = 0x7FFFFFFF ; FAST-NEXT: seto %al ; FAST-NEXT: movq %rdi, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 2147483647) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } define zeroext i1 @saddoi64imm5(i64 %v1, i64* %res) { ; SDAG-LABEL: saddoi64imm5: ; SDAG: ## %bb.0: ; SDAG-NEXT: subq $-2147483648, %rdi ## imm = 0x80000000 ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rdi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoi64imm5: ; FAST: ## %bb.0: ; FAST-NEXT: movl $2147483648, %eax ## imm = 0x80000000 ; FAST-NEXT: addq %rdi, %rax ; FAST-NEXT: seto %cl ; FAST-NEXT: movq %rax, (%rsi) ; FAST-NEXT: andb $1, %cl ; FAST-NEXT: movzbl %cl, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 2147483648) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; UADDO define zeroext i1 @uaddoi32(i32 %v1, i32 %v2, i32* %res) { ; SDAG-LABEL: uaddoi32: ; SDAG: ## %bb.0: ; SDAG-NEXT: addl %esi, %edi ; SDAG-NEXT: setb %al ; SDAG-NEXT: movl %edi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoi32: ; FAST: ## %bb.0: ; FAST-NEXT: addl %esi, %edi ; FAST-NEXT: setb %al ; FAST-NEXT: movl %edi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, i32* %res ret i1 %obit } define zeroext i1 @uaddoi64(i64 %v1, i64 %v2, i64* %res) { ; SDAG-LABEL: uaddoi64: ; SDAG: ## %bb.0: ; SDAG-NEXT: addq %rsi, %rdi ; SDAG-NEXT: setb %al ; SDAG-NEXT: movq %rdi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoi64: ; FAST: ## %bb.0: ; FAST-NEXT: addq %rsi, %rdi ; FAST-NEXT: setb %al ; FAST-NEXT: movq %rdi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.uadd.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; UADDO reg, 1 | NOT INC define zeroext i1 @uaddoinci8(i8 %v1, i8* %res) { ; SDAG-LABEL: uaddoinci8: ; SDAG: ## %bb.0: ; SDAG-NEXT: incb %dil ; SDAG-NEXT: sete %al ; SDAG-NEXT: movb %dil, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoinci8: ; FAST: ## %bb.0: ; FAST-NEXT: addb $1, %dil ; FAST-NEXT: setb %al ; FAST-NEXT: movb %dil, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 %v1, i8 1) %val = extractvalue {i8, i1} %t, 0 %obit = extractvalue {i8, i1} %t, 1 store i8 %val, i8* %res ret i1 %obit } define zeroext i1 @uaddoinci16(i16 %v1, i16* %res) { ; SDAG-LABEL: uaddoinci16: ; SDAG: ## %bb.0: ; SDAG-NEXT: incw %di ; SDAG-NEXT: sete %al ; SDAG-NEXT: movw %di, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoinci16: ; FAST: ## %bb.0: ; FAST-NEXT: addw $1, %di ; FAST-NEXT: setb %al ; FAST-NEXT: movw %di, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i16, i1} @llvm.uadd.with.overflow.i16(i16 %v1, i16 1) %val = extractvalue {i16, i1} %t, 0 %obit = extractvalue {i16, i1} %t, 1 store i16 %val, i16* %res ret i1 %obit } define zeroext i1 @uaddoinci32(i32 %v1, i32* %res) { ; SDAG-LABEL: uaddoinci32: ; SDAG: ## %bb.0: ; SDAG-NEXT: incl %edi ; SDAG-NEXT: sete %al ; SDAG-NEXT: movl %edi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoinci32: ; FAST: ## %bb.0: ; FAST-NEXT: addl $1, %edi ; FAST-NEXT: setb %al ; FAST-NEXT: movl %edi, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 1) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, i32* %res ret i1 %obit } define zeroext i1 @uaddoinci64(i64 %v1, i64* %res) { ; SDAG-LABEL: uaddoinci64: ; SDAG: ## %bb.0: ; SDAG-NEXT: incq %rdi ; SDAG-NEXT: sete %al ; SDAG-NEXT: movq %rdi, (%rsi) ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoinci64: ; FAST: ## %bb.0: ; FAST-NEXT: addq $1, %rdi ; FAST-NEXT: setb %al ; FAST-NEXT: movq %rdi, (%rsi) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.uadd.with.overflow.i64(i64 %v1, i64 1) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; SSUBO define zeroext i1 @ssuboi32(i32 %v1, i32 %v2, i32* %res) { ; SDAG-LABEL: ssuboi32: ; SDAG: ## %bb.0: ; SDAG-NEXT: subl %esi, %edi ; SDAG-NEXT: seto %al ; SDAG-NEXT: movl %edi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: ssuboi32: ; FAST: ## %bb.0: ; FAST-NEXT: subl %esi, %edi ; FAST-NEXT: seto %al ; FAST-NEXT: movl %edi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, i32* %res ret i1 %obit } define zeroext i1 @ssuboi64(i64 %v1, i64 %v2, i64* %res) { ; SDAG-LABEL: ssuboi64: ; SDAG: ## %bb.0: ; SDAG-NEXT: subq %rsi, %rdi ; SDAG-NEXT: seto %al ; SDAG-NEXT: movq %rdi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: ssuboi64: ; FAST: ## %bb.0: ; FAST-NEXT: subq %rsi, %rdi ; FAST-NEXT: seto %al ; FAST-NEXT: movq %rdi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.ssub.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; USUBO define zeroext i1 @usuboi32(i32 %v1, i32 %v2, i32* %res) { ; SDAG-LABEL: usuboi32: ; SDAG: ## %bb.0: ; SDAG-NEXT: subl %esi, %edi ; SDAG-NEXT: setb %al ; SDAG-NEXT: movl %edi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: usuboi32: ; FAST: ## %bb.0: ; FAST-NEXT: subl %esi, %edi ; FAST-NEXT: setb %al ; FAST-NEXT: movl %edi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, i32* %res ret i1 %obit } define zeroext i1 @usuboi64(i64 %v1, i64 %v2, i64* %res) { ; SDAG-LABEL: usuboi64: ; SDAG: ## %bb.0: ; SDAG-NEXT: subq %rsi, %rdi ; SDAG-NEXT: setb %al ; SDAG-NEXT: movq %rdi, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: usuboi64: ; FAST: ## %bb.0: ; FAST-NEXT: subq %rsi, %rdi ; FAST-NEXT: setb %al ; FAST-NEXT: movq %rdi, (%rdx) ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.usub.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 store i64 %val, i64* %res ret i1 %obit } ; ; Check the use of the overflow bit in combination with a select instruction. ; define i32 @saddoselecti32(i32 %v1, i32 %v2) { ; SDAG-LABEL: saddoselecti32: ; SDAG: ## %bb.0: ; SDAG-NEXT: movl %esi, %eax ; SDAG-NEXT: movl %edi, %ecx ; SDAG-NEXT: addl %esi, %ecx ; SDAG-NEXT: cmovol %edi, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoselecti32: ; FAST: ## %bb.0: ; FAST-NEXT: movl %esi, %eax ; FAST-NEXT: movl %edi, %ecx ; FAST-NEXT: addl %esi, %ecx ; FAST-NEXT: cmovol %edi, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2) %obit = extractvalue {i32, i1} %t, 1 %ret = select i1 %obit, i32 %v1, i32 %v2 ret i32 %ret } define i64 @saddoselecti64(i64 %v1, i64 %v2) { ; SDAG-LABEL: saddoselecti64: ; SDAG: ## %bb.0: ; SDAG-NEXT: movq %rsi, %rax ; SDAG-NEXT: movq %rdi, %rcx ; SDAG-NEXT: addq %rsi, %rcx ; SDAG-NEXT: cmovoq %rdi, %rax ; SDAG-NEXT: retq ; ; FAST-LABEL: saddoselecti64: ; FAST: ## %bb.0: ; FAST-NEXT: movq %rsi, %rax ; FAST-NEXT: movq %rdi, %rcx ; FAST-NEXT: addq %rsi, %rcx ; FAST-NEXT: cmovoq %rdi, %rax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 %v2) %obit = extractvalue {i64, i1} %t, 1 %ret = select i1 %obit, i64 %v1, i64 %v2 ret i64 %ret } define i32 @uaddoselecti32(i32 %v1, i32 %v2) { ; SDAG-LABEL: uaddoselecti32: ; SDAG: ## %bb.0: ; SDAG-NEXT: movl %esi, %eax ; SDAG-NEXT: movl %edi, %ecx ; SDAG-NEXT: addl %esi, %ecx ; SDAG-NEXT: cmovbl %edi, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoselecti32: ; FAST: ## %bb.0: ; FAST-NEXT: movl %esi, %eax ; FAST-NEXT: movl %edi, %ecx ; FAST-NEXT: addl %esi, %ecx ; FAST-NEXT: cmovbl %edi, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2) %obit = extractvalue {i32, i1} %t, 1 %ret = select i1 %obit, i32 %v1, i32 %v2 ret i32 %ret } define i64 @uaddoselecti64(i64 %v1, i64 %v2) { ; SDAG-LABEL: uaddoselecti64: ; SDAG: ## %bb.0: ; SDAG-NEXT: movq %rsi, %rax ; SDAG-NEXT: movq %rdi, %rcx ; SDAG-NEXT: addq %rsi, %rcx ; SDAG-NEXT: cmovbq %rdi, %rax ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoselecti64: ; FAST: ## %bb.0: ; FAST-NEXT: movq %rsi, %rax ; FAST-NEXT: movq %rdi, %rcx ; FAST-NEXT: addq %rsi, %rcx ; FAST-NEXT: cmovbq %rdi, %rax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.uadd.with.overflow.i64(i64 %v1, i64 %v2) %obit = extractvalue {i64, i1} %t, 1 %ret = select i1 %obit, i64 %v1, i64 %v2 ret i64 %ret } define i32 @ssuboselecti32(i32 %v1, i32 %v2) { ; SDAG-LABEL: ssuboselecti32: ; SDAG: ## %bb.0: ; SDAG-NEXT: movl %esi, %eax ; SDAG-NEXT: cmpl %esi, %edi ; SDAG-NEXT: cmovol %edi, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: ssuboselecti32: ; FAST: ## %bb.0: ; FAST-NEXT: movl %esi, %eax ; FAST-NEXT: cmpl %esi, %edi ; FAST-NEXT: cmovol %edi, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 %v1, i32 %v2) %obit = extractvalue {i32, i1} %t, 1 %ret = select i1 %obit, i32 %v1, i32 %v2 ret i32 %ret } define i64 @ssuboselecti64(i64 %v1, i64 %v2) { ; SDAG-LABEL: ssuboselecti64: ; SDAG: ## %bb.0: ; SDAG-NEXT: movq %rsi, %rax ; SDAG-NEXT: cmpq %rsi, %rdi ; SDAG-NEXT: cmovoq %rdi, %rax ; SDAG-NEXT: retq ; ; FAST-LABEL: ssuboselecti64: ; FAST: ## %bb.0: ; FAST-NEXT: movq %rsi, %rax ; FAST-NEXT: cmpq %rsi, %rdi ; FAST-NEXT: cmovoq %rdi, %rax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.ssub.with.overflow.i64(i64 %v1, i64 %v2) %obit = extractvalue {i64, i1} %t, 1 %ret = select i1 %obit, i64 %v1, i64 %v2 ret i64 %ret } define i32 @usuboselecti32(i32 %v1, i32 %v2) { ; SDAG-LABEL: usuboselecti32: ; SDAG: ## %bb.0: ; SDAG-NEXT: movl %esi, %eax ; SDAG-NEXT: cmpl %esi, %edi ; SDAG-NEXT: cmovbl %edi, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: usuboselecti32: ; FAST: ## %bb.0: ; FAST-NEXT: movl %esi, %eax ; FAST-NEXT: cmpl %esi, %edi ; FAST-NEXT: cmovbl %edi, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %v1, i32 %v2) %obit = extractvalue {i32, i1} %t, 1 %ret = select i1 %obit, i32 %v1, i32 %v2 ret i32 %ret } define i64 @usuboselecti64(i64 %v1, i64 %v2) { ; SDAG-LABEL: usuboselecti64: ; SDAG: ## %bb.0: ; SDAG-NEXT: movq %rsi, %rax ; SDAG-NEXT: cmpq %rsi, %rdi ; SDAG-NEXT: cmovbq %rdi, %rax ; SDAG-NEXT: retq ; ; FAST-LABEL: usuboselecti64: ; FAST: ## %bb.0: ; FAST-NEXT: movq %rsi, %rax ; FAST-NEXT: cmpq %rsi, %rdi ; FAST-NEXT: cmovbq %rdi, %rax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.usub.with.overflow.i64(i64 %v1, i64 %v2) %obit = extractvalue {i64, i1} %t, 1 %ret = select i1 %obit, i64 %v1, i64 %v2 ret i64 %ret } ; ; Check the use of the overflow bit in combination with a branch instruction. ; define zeroext i1 @saddobri32(i32 %v1, i32 %v2) { ; SDAG-LABEL: saddobri32: ; SDAG: ## %bb.0: ; SDAG-NEXT: addl %esi, %edi ; SDAG-NEXT: jo LBB31_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB31_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: saddobri32: ; FAST: ## %bb.0: ; FAST-NEXT: addl %esi, %edi ; FAST-NEXT: jo LBB31_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB31_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define zeroext i1 @saddobri64(i64 %v1, i64 %v2) { ; SDAG-LABEL: saddobri64: ; SDAG: ## %bb.0: ; SDAG-NEXT: addq %rsi, %rdi ; SDAG-NEXT: jo LBB32_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB32_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: saddobri64: ; FAST: ## %bb.0: ; FAST-NEXT: addq %rsi, %rdi ; FAST-NEXT: jo LBB32_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB32_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define zeroext i1 @uaddobri32(i32 %v1, i32 %v2) { ; SDAG-LABEL: uaddobri32: ; SDAG: ## %bb.0: ; SDAG-NEXT: addl %esi, %edi ; SDAG-NEXT: jb LBB33_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB33_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddobri32: ; FAST: ## %bb.0: ; FAST-NEXT: addl %esi, %edi ; FAST-NEXT: jb LBB33_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB33_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define zeroext i1 @uaddobri64(i64 %v1, i64 %v2) { ; SDAG-LABEL: uaddobri64: ; SDAG: ## %bb.0: ; SDAG-NEXT: addq %rsi, %rdi ; SDAG-NEXT: jb LBB34_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB34_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddobri64: ; FAST: ## %bb.0: ; FAST-NEXT: addq %rsi, %rdi ; FAST-NEXT: jb LBB34_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB34_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.uadd.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define zeroext i1 @ssubobri32(i32 %v1, i32 %v2) { ; SDAG-LABEL: ssubobri32: ; SDAG: ## %bb.0: ; SDAG-NEXT: cmpl %esi, %edi ; SDAG-NEXT: jo LBB35_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB35_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: ssubobri32: ; FAST: ## %bb.0: ; FAST-NEXT: cmpl %esi, %edi ; FAST-NEXT: jo LBB35_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB35_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define zeroext i1 @ssubobri64(i64 %v1, i64 %v2) { ; SDAG-LABEL: ssubobri64: ; SDAG: ## %bb.0: ; SDAG-NEXT: cmpq %rsi, %rdi ; SDAG-NEXT: jo LBB36_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB36_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: ssubobri64: ; FAST: ## %bb.0: ; FAST-NEXT: cmpq %rsi, %rdi ; FAST-NEXT: jo LBB36_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB36_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.ssub.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define zeroext i1 @usubobri32(i32 %v1, i32 %v2) { ; SDAG-LABEL: usubobri32: ; SDAG: ## %bb.0: ; SDAG-NEXT: cmpl %esi, %edi ; SDAG-NEXT: jb LBB37_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB37_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: usubobri32: ; FAST: ## %bb.0: ; FAST-NEXT: cmpl %esi, %edi ; FAST-NEXT: jb LBB37_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB37_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %v1, i32 %v2) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define zeroext i1 @usubobri64(i64 %v1, i64 %v2) { ; SDAG-LABEL: usubobri64: ; SDAG: ## %bb.0: ; SDAG-NEXT: cmpq %rsi, %rdi ; SDAG-NEXT: jb LBB38_1 ; SDAG-NEXT: ## %bb.2: ## %continue ; SDAG-NEXT: movb $1, %al ; SDAG-NEXT: retq ; SDAG-NEXT: LBB38_1: ## %overflow ; SDAG-NEXT: xorl %eax, %eax ; SDAG-NEXT: retq ; ; FAST-LABEL: usubobri64: ; FAST: ## %bb.0: ; FAST-NEXT: cmpq %rsi, %rdi ; FAST-NEXT: jb LBB38_1 ; FAST-NEXT: ## %bb.2: ## %continue ; FAST-NEXT: movb $1, %al ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq ; FAST-NEXT: LBB38_1: ## %overflow ; FAST-NEXT: xorl %eax, %eax ; FAST-NEXT: andb $1, %al ; FAST-NEXT: movzbl %al, %eax ; FAST-NEXT: retq %t = call {i64, i1} @llvm.usub.with.overflow.i64(i64 %v1, i64 %v2) %val = extractvalue {i64, i1} %t, 0 %obit = extractvalue {i64, i1} %t, 1 br i1 %obit, label %overflow, label %continue, !prof !0 overflow: ret i1 false continue: ret i1 true } define {i64, i1} @uaddoovf(i64 %a, i64 %b) { ; SDAG-LABEL: uaddoovf: ; SDAG: ## %bb.0: ; SDAG-NEXT: movzbl %dil, %ecx ; SDAG-NEXT: movzbl %sil, %eax ; SDAG-NEXT: addq %rcx, %rax ; SDAG-NEXT: xorl %edx, %edx ; SDAG-NEXT: retq ; ; FAST-LABEL: uaddoovf: ; FAST: ## %bb.0: ; FAST-NEXT: movzbl %dil, %ecx ; FAST-NEXT: movzbl %sil, %eax ; FAST-NEXT: addq %rcx, %rax ; FAST-NEXT: xorl %edx, %edx ; FAST-NEXT: retq %1 = and i64 %a, 255 %2 = and i64 %b, 255 %t = call {i64, i1} @llvm.uadd.with.overflow.i64(i64 %1, i64 %2) ret {i64, i1} %t } define {i64, i1} @usuboovf(i64 %a, i64 %b) { ; SDAG-LABEL: usuboovf: ; SDAG: ## %bb.0: ; SDAG-NEXT: movq %rsi, %rax ; SDAG-NEXT: notq %rax ; SDAG-NEXT: xorl %edx, %edx ; SDAG-NEXT: retq ; ; FAST-LABEL: usuboovf: ; FAST: ## %bb.0: ; FAST-NEXT: movq %rsi, %rax ; FAST-NEXT: notq %rax ; FAST-NEXT: xorl %edx, %edx ; FAST-NEXT: retq %t0 = call {i64, i1} @llvm.usub.with.overflow.i64(i64 %a, i64 %a) %v0 = extractvalue {i64, i1} %t0, 0 %o0 = extractvalue {i64, i1} %t0, 1 %t1 = call {i64, i1} @llvm.usub.with.overflow.i64(i64 -1, i64 %b) %v1 = extractvalue {i64, i1} %t1, 0 %o1 = extractvalue {i64, i1} %t1, 1 %oo = or i1 %o0, %o1 %t2 = call {i64, i1} @llvm.usub.with.overflow.i64(i64 %v1, i64 %v0) %v2 = extractvalue {i64, i1} %t2, 0 %o2 = extractvalue {i64, i1} %t2, 1 %ooo = or i1 %oo, %o2 %t = insertvalue {i64, i1} %t2, i1 %ooo, 1 ret {i64, i1} %t } ; Make sure we select an INC for both the data use and the flag use. define i32 @incovfselectstore(i32 %v1, i32 %v2, i32* %x) { ; SDAG-LABEL: incovfselectstore: ; SDAG: ## %bb.0: ; SDAG-NEXT: movl %esi, %eax ; SDAG-NEXT: movl %edi, %ecx ; SDAG-NEXT: incl %ecx ; SDAG-NEXT: cmovol %edi, %eax ; SDAG-NEXT: movl %ecx, (%rdx) ; SDAG-NEXT: retq ; ; FAST-LABEL: incovfselectstore: ; FAST: ## %bb.0: ; FAST-NEXT: movl %esi, %eax ; FAST-NEXT: movl %edi, %ecx ; FAST-NEXT: incl %ecx ; FAST-NEXT: cmovol %edi, %eax ; FAST-NEXT: movl %ecx, (%rdx) ; FAST-NEXT: retq %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 1) %obit = extractvalue {i32, i1} %t, 1 %ret = select i1 %obit, i32 %v1, i32 %v2 %val = extractvalue {i32, i1} %t, 0 store i32 %val, i32* %x ret i32 %ret } ; Make sure we select a DEC for both the data use and the flag use. define i32 @decovfselectstore(i32 %v1, i32 %v2, i32* %x) { ; GENERIC-LABEL: decovfselectstore: ; GENERIC: ## %bb.0: ; GENERIC-NEXT: movl %esi, %eax ; GENERIC-NEXT: movl %edi, %ecx ; GENERIC-NEXT: decl %ecx ; GENERIC-NEXT: cmovol %edi, %eax ; GENERIC-NEXT: movl %ecx, (%rdx) ; GENERIC-NEXT: retq ; ; FAST-LABEL: decovfselectstore: ; FAST: ## %bb.0: ; FAST-NEXT: movl %esi, %eax ; FAST-NEXT: movl %edi, %ecx ; FAST-NEXT: decl %ecx ; FAST-NEXT: cmovol %edi, %eax ; FAST-NEXT: movl %ecx, (%rdx) ; FAST-NEXT: retq ; ; KNL-LABEL: decovfselectstore: ; KNL: ## %bb.0: ; KNL-NEXT: movl %esi, %eax ; KNL-NEXT: movl %edi, %ecx ; KNL-NEXT: addl $-1, %ecx ; KNL-NEXT: cmovol %edi, %eax ; KNL-NEXT: movl %ecx, (%rdx) ; KNL-NEXT: retq %t = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 %v1, i32 1) %obit = extractvalue {i32, i1} %t, 1 %ret = select i1 %obit, i32 %v1, i32 %v2 %val = extractvalue {i32, i1} %t, 0 store i32 %val, i32* %x ret i32 %ret } declare {i8, i1} @llvm.sadd.with.overflow.i8 (i8, i8 ) nounwind readnone declare {i16, i1} @llvm.sadd.with.overflow.i16(i16, i16) nounwind readnone declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32) nounwind readnone declare {i64, i1} @llvm.sadd.with.overflow.i64(i64, i64) nounwind readnone declare {i8, i1} @llvm.uadd.with.overflow.i8 (i8, i8 ) nounwind readnone declare {i16, i1} @llvm.uadd.with.overflow.i16(i16, i16) nounwind readnone declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32) nounwind readnone declare {i64, i1} @llvm.uadd.with.overflow.i64(i64, i64) nounwind readnone declare {i32, i1} @llvm.ssub.with.overflow.i32(i32, i32) nounwind readnone declare {i64, i1} @llvm.ssub.with.overflow.i64(i64, i64) nounwind readnone declare {i32, i1} @llvm.usub.with.overflow.i32(i32, i32) nounwind readnone declare {i64, i1} @llvm.usub.with.overflow.i64(i64, i64) nounwind readnone !0 = !{!"branch_weights", i32 0, i32 2147483647}