104 lines
6.8 KiB
Plaintext
104 lines
6.8 KiB
Plaintext
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -o - -mtriple=x86_64-- -run-pass=greedy %s | FileCheck %s
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# Tests for stack folding MULX. Doing this as a MIR test to ensure MULX is used and not legacy MUL.
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--- |
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; Function Attrs: nounwind
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define i32 @stack_fold_mulx_u32(i32 %a0, i32 %a1) #0 {
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tail call void asm sideeffect "nop", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
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%1 = zext i32 %a0 to i128
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%2 = zext i32 %a1 to i128
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%3 = mul i128 %1, %2
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%4 = lshr i128 %3, 32
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%5 = trunc i128 %4 to i32
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ret i32 %5
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}
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; Function Attrs: nounwind
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define i64 @stack_fold_mulx_u64(i64 %a0, i64 %a1) #0 {
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tail call void asm sideeffect "nop", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
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%1 = zext i64 %a0 to i128
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%2 = zext i64 %a1 to i128
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%3 = mul i128 %1, %2
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%4 = lshr i128 %3, 64
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%5 = trunc i128 %4 to i64
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ret i64 %5
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}
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; Function Attrs: nounwind
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declare void @llvm.stackprotector(i8*, i8**) #1
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attributes #0 = { nounwind "target-features"="+bmi2" }
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attributes #1 = { nounwind }
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...
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---
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name: stack_fold_mulx_u32
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alignment: 16
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tracksRegLiveness: true
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registers:
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- { id: 0, class: gr32 }
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- { id: 1, class: gr32 }
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- { id: 2, class: fr64 }
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- { id: 3, class: gr32 }
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- { id: 4, class: gr32 }
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liveins:
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- { reg: '$edi', virtual-reg: '%0' }
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- { reg: '$esi', virtual-reg: '%1' }
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body: |
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bb.0 (%ir-block.0):
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liveins: $edi, $esi
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; CHECK-LABEL: name: stack_fold_mulx_u32
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; CHECK: liveins: $edi, $esi
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; CHECK: MOV32mr %stack.0, 1, $noreg, 0, $noreg, $esi :: (store 4 into %stack.0)
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; CHECK: MOV32mr %stack.1, 1, $noreg, 0, $noreg, $edi :: (store 4 into %stack.1)
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; CHECK: INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
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; CHECK: $edx = MOV32rm %stack.1, 1, $noreg, 0, $noreg :: (load 4 from %stack.1)
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; CHECK: %3:gr32, dead %4:gr32 = MULX32rm %stack.0, 1, $noreg, 0, $noreg, implicit $edx :: (load 4 from %stack.0)
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; CHECK: $eax = COPY %3
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; CHECK: RET 0, $eax
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%1:gr32 = COPY $esi
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%0:gr32 = COPY $edi
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INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
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$edx = COPY %0
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%3:gr32, dead %4:gr32 = MULX32rr %1, implicit killed $edx
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$eax = COPY %3
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RET 0, killed $eax
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...
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---
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name: stack_fold_mulx_u64
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alignment: 16
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tracksRegLiveness: true
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registers:
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- { id: 0, class: gr64 }
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- { id: 1, class: gr64 }
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- { id: 2, class: fr64 }
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- { id: 3, class: gr64 }
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- { id: 4, class: gr64 }
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0 (%ir-block.0):
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liveins: $rdi, $rsi
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; CHECK-LABEL: name: stack_fold_mulx_u64
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; CHECK: liveins: $rdi, $rsi
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; CHECK: MOV64mr %stack.0, 1, $noreg, 0, $noreg, $rsi :: (store 8 into %stack.0)
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; CHECK: MOV64mr %stack.1, 1, $noreg, 0, $noreg, $rdi :: (store 8 into %stack.1)
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; CHECK: INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
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; CHECK: $rdx = MOV64rm %stack.1, 1, $noreg, 0, $noreg :: (load 8 from %stack.1)
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; CHECK: %3:gr64, dead %4:gr64 = MULX64rm %stack.0, 1, $noreg, 0, $noreg, implicit $rdx :: (load 8 from %stack.0)
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; CHECK: $rax = COPY %3
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; CHECK: RET 0, $rax
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%1:gr64 = COPY $rsi
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%0:gr64 = COPY $rdi
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INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
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$rdx = COPY %0
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%3:gr64, dead %4:gr64 = MULX64rr %1, implicit killed $rdx
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$rax = COPY %3
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RET 0, killed $rax
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...
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