; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; Verify the call site info. If the call site info is not ; in the valid state, an assert should be triggered. ; RUN: llc < %s -debug-entry-values -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening -stop-after=machineverifier ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening -data-sections | FileCheck %s --check-prefix=X64 ; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39451. ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening -relocation-model pic -data-sections -verify-machineinstrs=0 | FileCheck %s --check-prefix=X64-PIC ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening -data-sections -mattr=+retpoline | FileCheck %s --check-prefix=X64-RETPOLINE ; ; FIXME: Add support for 32-bit. @global_fnptr = external global i32 ()* @global_blockaddrs = dso_local constant [4 x i8*] [ i8* blockaddress(@test_indirectbr_global, %bb0), i8* blockaddress(@test_indirectbr_global, %bb1), i8* blockaddress(@test_indirectbr_global, %bb2), i8* blockaddress(@test_indirectbr_global, %bb3) ] define dso_local i32 @test_indirect_call(i32 ()** %ptr) nounwind { ; X64-LABEL: test_indirect_call: ; X64: # %bb.0: # %entry ; X64-NEXT: pushq %rbx ; X64-NEXT: movq %rsp, %rax ; X64-NEXT: movq $-1, %rbx ; X64-NEXT: sarq $63, %rax ; X64-NEXT: movq (%rdi), %rcx ; X64-NEXT: orq %rax, %rcx ; X64-NEXT: shlq $47, %rax ; X64-NEXT: orq %rax, %rsp ; X64-NEXT: callq *%rcx ; X64-NEXT: .Lslh_ret_addr0: ; X64-NEXT: movq %rsp, %rcx ; X64-NEXT: movq -{{[0-9]+}}(%rsp), %rdx ; X64-NEXT: sarq $63, %rcx ; X64-NEXT: cmpq $.Lslh_ret_addr0, %rdx ; X64-NEXT: cmovneq %rbx, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: popq %rbx ; X64-NEXT: retq ; ; X64-PIC-LABEL: test_indirect_call: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: pushq %rbx ; X64-PIC-NEXT: movq %rsp, %rax ; X64-PIC-NEXT: movq $-1, %rbx ; X64-PIC-NEXT: sarq $63, %rax ; X64-PIC-NEXT: movq (%rdi), %rcx ; X64-PIC-NEXT: orq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rax ; X64-PIC-NEXT: orq %rax, %rsp ; X64-PIC-NEXT: callq *%rcx ; X64-PIC-NEXT: .Lslh_ret_addr0: ; X64-PIC-NEXT: movq %rsp, %rcx ; X64-PIC-NEXT: movq -{{[0-9]+}}(%rsp), %rdx ; X64-PIC-NEXT: sarq $63, %rcx ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rbx, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: popq %rbx ; X64-PIC-NEXT: retq ; ; X64-RETPOLINE-LABEL: test_indirect_call: ; X64-RETPOLINE: # %bb.0: # %entry ; X64-RETPOLINE-NEXT: pushq %rbx ; X64-RETPOLINE-NEXT: movq %rsp, %rax ; X64-RETPOLINE-NEXT: movq $-1, %rbx ; X64-RETPOLINE-NEXT: sarq $63, %rax ; X64-RETPOLINE-NEXT: movq (%rdi), %r11 ; X64-RETPOLINE-NEXT: orq %rax, %r11 ; X64-RETPOLINE-NEXT: shlq $47, %rax ; X64-RETPOLINE-NEXT: orq %rax, %rsp ; X64-RETPOLINE-NEXT: callq __llvm_retpoline_r11 ; X64-RETPOLINE-NEXT: .Lslh_ret_addr0: ; X64-RETPOLINE-NEXT: movq %rsp, %rcx ; X64-RETPOLINE-NEXT: movq -{{[0-9]+}}(%rsp), %rdx ; X64-RETPOLINE-NEXT: sarq $63, %rcx ; X64-RETPOLINE-NEXT: cmpq $.Lslh_ret_addr0, %rdx ; X64-RETPOLINE-NEXT: cmovneq %rbx, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: popq %rbx ; X64-RETPOLINE-NEXT: retq entry: %fp = load i32 ()*, i32 ()** %ptr %v = call i32 %fp() ret i32 %v } define dso_local i32 @test_indirect_tail_call(i32 ()** %ptr) nounwind { ; X64-LABEL: test_indirect_tail_call: ; X64: # %bb.0: # %entry ; X64-NEXT: movq %rsp, %rax ; X64-NEXT: movq $-1, %rcx ; X64-NEXT: sarq $63, %rax ; X64-NEXT: movq (%rdi), %rcx ; X64-NEXT: orq %rax, %rcx ; X64-NEXT: shlq $47, %rax ; X64-NEXT: orq %rax, %rsp ; X64-NEXT: jmpq *%rcx # TAILCALL ; ; X64-PIC-LABEL: test_indirect_tail_call: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: movq %rsp, %rax ; X64-PIC-NEXT: movq $-1, %rcx ; X64-PIC-NEXT: sarq $63, %rax ; X64-PIC-NEXT: movq (%rdi), %rcx ; X64-PIC-NEXT: orq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rax ; X64-PIC-NEXT: orq %rax, %rsp ; X64-PIC-NEXT: jmpq *%rcx # TAILCALL ; ; X64-RETPOLINE-LABEL: test_indirect_tail_call: ; X64-RETPOLINE: # %bb.0: # %entry ; X64-RETPOLINE-NEXT: movq %rsp, %rax ; X64-RETPOLINE-NEXT: movq $-1, %rcx ; X64-RETPOLINE-NEXT: sarq $63, %rax ; X64-RETPOLINE-NEXT: movq (%rdi), %r11 ; X64-RETPOLINE-NEXT: orq %rax, %r11 ; X64-RETPOLINE-NEXT: shlq $47, %rax ; X64-RETPOLINE-NEXT: orq %rax, %rsp ; X64-RETPOLINE-NEXT: jmp __llvm_retpoline_r11 # TAILCALL entry: %fp = load i32 ()*, i32 ()** %ptr %v = tail call i32 %fp() ret i32 %v } define dso_local i32 @test_indirect_call_global() nounwind { ; X64-LABEL: test_indirect_call_global: ; X64: # %bb.0: # %entry ; X64-NEXT: pushq %rbx ; X64-NEXT: movq %rsp, %rax ; X64-NEXT: movq $-1, %rbx ; X64-NEXT: sarq $63, %rax ; X64-NEXT: movq global_fnptr@{{.*}}(%rip), %rcx ; X64-NEXT: movq (%rcx), %rcx ; X64-NEXT: orq %rax, %rcx ; X64-NEXT: shlq $47, %rax ; X64-NEXT: orq %rax, %rsp ; X64-NEXT: callq *%rcx ; X64-NEXT: .Lslh_ret_addr1: ; X64-NEXT: movq %rsp, %rcx ; X64-NEXT: movq -{{[0-9]+}}(%rsp), %rdx ; X64-NEXT: sarq $63, %rcx ; X64-NEXT: cmpq $.Lslh_ret_addr1, %rdx ; X64-NEXT: cmovneq %rbx, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: popq %rbx ; X64-NEXT: retq ; ; X64-PIC-LABEL: test_indirect_call_global: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: pushq %rbx ; X64-PIC-NEXT: movq %rsp, %rax ; X64-PIC-NEXT: movq $-1, %rbx ; X64-PIC-NEXT: sarq $63, %rax ; X64-PIC-NEXT: movq global_fnptr@{{.*}}(%rip), %rcx ; X64-PIC-NEXT: movq (%rcx), %rcx ; X64-PIC-NEXT: orq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rax ; X64-PIC-NEXT: orq %rax, %rsp ; X64-PIC-NEXT: callq *%rcx ; X64-PIC-NEXT: .Lslh_ret_addr1: ; X64-PIC-NEXT: movq %rsp, %rcx ; X64-PIC-NEXT: movq -{{[0-9]+}}(%rsp), %rdx ; X64-PIC-NEXT: sarq $63, %rcx ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rbx, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: popq %rbx ; X64-PIC-NEXT: retq ; ; X64-RETPOLINE-LABEL: test_indirect_call_global: ; X64-RETPOLINE: # %bb.0: # %entry ; X64-RETPOLINE-NEXT: pushq %rbx ; X64-RETPOLINE-NEXT: movq %rsp, %rax ; X64-RETPOLINE-NEXT: movq $-1, %rbx ; X64-RETPOLINE-NEXT: sarq $63, %rax ; X64-RETPOLINE-NEXT: movq global_fnptr@{{.*}}(%rip), %rcx ; X64-RETPOLINE-NEXT: movq (%rcx), %r11 ; X64-RETPOLINE-NEXT: orq %rax, %r11 ; X64-RETPOLINE-NEXT: shlq $47, %rax ; X64-RETPOLINE-NEXT: orq %rax, %rsp ; X64-RETPOLINE-NEXT: callq __llvm_retpoline_r11 ; X64-RETPOLINE-NEXT: .Lslh_ret_addr1: ; X64-RETPOLINE-NEXT: movq %rsp, %rcx ; X64-RETPOLINE-NEXT: movq -{{[0-9]+}}(%rsp), %rdx ; X64-RETPOLINE-NEXT: sarq $63, %rcx ; X64-RETPOLINE-NEXT: cmpq $.Lslh_ret_addr1, %rdx ; X64-RETPOLINE-NEXT: cmovneq %rbx, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: popq %rbx ; X64-RETPOLINE-NEXT: retq entry: %fp = load i32 ()*, i32 ()** @global_fnptr %v = call i32 %fp() ret i32 %v } define dso_local i32 @test_indirect_tail_call_global() nounwind { ; X64-LABEL: test_indirect_tail_call_global: ; X64: # %bb.0: # %entry ; X64-NEXT: movq %rsp, %rax ; X64-NEXT: movq $-1, %rcx ; X64-NEXT: sarq $63, %rax ; X64-NEXT: movq global_fnptr@{{.*}}(%rip), %rcx ; X64-NEXT: movq (%rcx), %rcx ; X64-NEXT: orq %rax, %rcx ; X64-NEXT: shlq $47, %rax ; X64-NEXT: orq %rax, %rsp ; X64-NEXT: jmpq *%rcx # TAILCALL ; ; X64-PIC-LABEL: test_indirect_tail_call_global: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: movq %rsp, %rax ; X64-PIC-NEXT: movq $-1, %rcx ; X64-PIC-NEXT: sarq $63, %rax ; X64-PIC-NEXT: movq global_fnptr@{{.*}}(%rip), %rcx ; X64-PIC-NEXT: movq (%rcx), %rcx ; X64-PIC-NEXT: orq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rax ; X64-PIC-NEXT: orq %rax, %rsp ; X64-PIC-NEXT: jmpq *%rcx # TAILCALL ; ; X64-RETPOLINE-LABEL: test_indirect_tail_call_global: ; X64-RETPOLINE: # %bb.0: # %entry ; X64-RETPOLINE-NEXT: movq %rsp, %rax ; X64-RETPOLINE-NEXT: movq $-1, %rcx ; X64-RETPOLINE-NEXT: sarq $63, %rax ; X64-RETPOLINE-NEXT: movq global_fnptr@{{.*}}(%rip), %rcx ; X64-RETPOLINE-NEXT: movq (%rcx), %r11 ; X64-RETPOLINE-NEXT: orq %rax, %r11 ; X64-RETPOLINE-NEXT: shlq $47, %rax ; X64-RETPOLINE-NEXT: orq %rax, %rsp ; X64-RETPOLINE-NEXT: jmp __llvm_retpoline_r11 # TAILCALL entry: %fp = load i32 ()*, i32 ()** @global_fnptr %v = tail call i32 %fp() ret i32 %v } define dso_local i32 @test_indirectbr(i8** %ptr) nounwind { ; X64-LABEL: test_indirectbr: ; X64: # %bb.0: # %entry ; X64-NEXT: movq %rsp, %rcx ; X64-NEXT: movq $-1, %rax ; X64-NEXT: sarq $63, %rcx ; X64-NEXT: movq (%rdi), %rdx ; X64-NEXT: orq %rcx, %rdx ; X64-NEXT: jmpq *%rdx ; X64-NEXT: .LBB4_1: # Block address taken ; X64-NEXT: # %bb0 ; X64-NEXT: cmpq $.LBB4_1, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $2, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .LBB4_3: # Block address taken ; X64-NEXT: # %bb2 ; X64-NEXT: cmpq $.LBB4_3, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $13, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .LBB4_4: # Block address taken ; X64-NEXT: # %bb3 ; X64-NEXT: cmpq $.LBB4_4, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $42, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .LBB4_2: # Block address taken ; X64-NEXT: # %bb1 ; X64-NEXT: cmpq $.LBB4_2, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $7, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; ; X64-PIC-LABEL: test_indirectbr: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: movq %rsp, %rcx ; X64-PIC-NEXT: movq $-1, %rax ; X64-PIC-NEXT: sarq $63, %rcx ; X64-PIC-NEXT: movq (%rdi), %rdx ; X64-PIC-NEXT: orq %rcx, %rdx ; X64-PIC-NEXT: jmpq *%rdx ; X64-PIC-NEXT: .LBB4_1: # Block address taken ; X64-PIC-NEXT: # %bb0 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $2, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .LBB4_3: # Block address taken ; X64-PIC-NEXT: # %bb2 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $13, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .LBB4_4: # Block address taken ; X64-PIC-NEXT: # %bb3 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $42, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .LBB4_2: # Block address taken ; X64-PIC-NEXT: # %bb1 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $7, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; ; X64-RETPOLINE-LABEL: test_indirectbr: ; X64-RETPOLINE: # %bb.0: # %entry entry: %a = load i8*, i8** %ptr indirectbr i8* %a, [ label %bb0, label %bb1, label %bb2, label %bb3 ] bb0: ret i32 2 bb1: ret i32 7 bb2: ret i32 13 bb3: ret i32 42 } define dso_local i32 @test_indirectbr_global(i32 %idx) nounwind { ; X64-LABEL: test_indirectbr_global: ; X64: # %bb.0: # %entry ; X64-NEXT: movq %rsp, %rcx ; X64-NEXT: movq $-1, %rax ; X64-NEXT: sarq $63, %rcx ; X64-NEXT: movslq %edi, %rdx ; X64-NEXT: movq global_blockaddrs(,%rdx,8), %rdx ; X64-NEXT: orq %rcx, %rdx ; X64-NEXT: jmpq *%rdx ; X64-NEXT: .Ltmp0: # Block address taken ; X64-NEXT: .LBB5_1: # %bb0 ; X64-NEXT: cmpq $.LBB5_1, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $2, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .Ltmp1: # Block address taken ; X64-NEXT: .LBB5_3: # %bb2 ; X64-NEXT: cmpq $.LBB5_3, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $13, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .Ltmp2: # Block address taken ; X64-NEXT: .LBB5_4: # %bb3 ; X64-NEXT: cmpq $.LBB5_4, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $42, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .Ltmp3: # Block address taken ; X64-NEXT: .LBB5_2: # %bb1 ; X64-NEXT: cmpq $.LBB5_2, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $7, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; ; X64-PIC-LABEL: test_indirectbr_global: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: movq %rsp, %rcx ; X64-PIC-NEXT: movq $-1, %rax ; X64-PIC-NEXT: sarq $63, %rcx ; X64-PIC-NEXT: movslq %edi, %rdx ; X64-PIC-NEXT: leaq .Lglobal_blockaddrs$local(%rip), %rsi ; X64-PIC-NEXT: movq (%rsi,%rdx,8), %rdx ; X64-PIC-NEXT: orq %rcx, %rdx ; X64-PIC-NEXT: jmpq *%rdx ; X64-PIC-NEXT: .Ltmp0: # Block address taken ; X64-PIC-NEXT: .LBB5_1: # %bb0 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $2, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .Ltmp1: # Block address taken ; X64-PIC-NEXT: .LBB5_3: # %bb2 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $13, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .Ltmp2: # Block address taken ; X64-PIC-NEXT: .LBB5_4: # %bb3 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $42, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .Ltmp3: # Block address taken ; X64-PIC-NEXT: .LBB5_2: # %bb1 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $7, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; ; X64-RETPOLINE-LABEL: test_indirectbr_global: ; X64-RETPOLINE: # %bb.0: # %entry ; X64-RETPOLINE-NEXT: movq %rsp, %rcx ; X64-RETPOLINE-NEXT: movq $-1, %rax ; X64-RETPOLINE-NEXT: sarq $63, %rcx ; X64-RETPOLINE-NEXT: movslq %edi, %rdx ; X64-RETPOLINE-NEXT: movq global_blockaddrs(,%rdx,8), %rdx ; X64-RETPOLINE-NEXT: orq %rcx, %rdx ; X64-RETPOLINE-NEXT: cmpq $2, %rdx ; X64-RETPOLINE-NEXT: je .LBB6_4 ; X64-RETPOLINE-NEXT: # %bb.1: # %entry ; X64-RETPOLINE-NEXT: cmoveq %rax, %rcx ; X64-RETPOLINE-NEXT: cmpq $3, %rdx ; X64-RETPOLINE-NEXT: je .LBB6_5 ; X64-RETPOLINE-NEXT: # %bb.2: # %entry ; X64-RETPOLINE-NEXT: cmoveq %rax, %rcx ; X64-RETPOLINE-NEXT: cmpq $4, %rdx ; X64-RETPOLINE-NEXT: jne .LBB6_3 ; X64-RETPOLINE-NEXT: .Ltmp0: # Block address taken ; X64-RETPOLINE-NEXT: # %bb.6: # %bb3 ; X64-RETPOLINE-NEXT: cmovneq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $42, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq ; X64-RETPOLINE-NEXT: .Ltmp1: # Block address taken ; X64-RETPOLINE-NEXT: .LBB6_4: # %bb1 ; X64-RETPOLINE-NEXT: cmovneq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $7, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq ; X64-RETPOLINE-NEXT: .Ltmp2: # Block address taken ; X64-RETPOLINE-NEXT: .LBB6_5: # %bb2 ; X64-RETPOLINE-NEXT: cmovneq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $13, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq ; X64-RETPOLINE-NEXT: .Ltmp3: # Block address taken ; X64-RETPOLINE-NEXT: .LBB6_3: # %bb0 ; X64-RETPOLINE-NEXT: cmoveq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $2, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq entry: %ptr = getelementptr [4 x i8*], [4 x i8*]* @global_blockaddrs, i32 0, i32 %idx %a = load i8*, i8** %ptr indirectbr i8* %a, [ label %bb0, label %bb1, label %bb2, label %bb3 ] bb0: ret i32 2 bb1: ret i32 7 bb2: ret i32 13 bb3: ret i32 42 } ; This function's switch is crafted to trigger jump-table lowering in the x86 ; backend so that we can test how the exact jump table lowering behaves. define dso_local i32 @test_switch_jumptable(i32 %idx) nounwind { ; X64-LABEL: test_switch_jumptable: ; X64: # %bb.0: # %entry ; X64-NEXT: movq %rsp, %rcx ; X64-NEXT: movq $-1, %rax ; X64-NEXT: sarq $63, %rcx ; X64-NEXT: cmpl $3, %edi ; X64-NEXT: ja .LBB6_2 ; X64-NEXT: # %bb.1: # %entry ; X64-NEXT: cmovaq %rax, %rcx ; X64-NEXT: movl %edi, %edx ; X64-NEXT: movq .LJTI6_0(,%rdx,8), %rdx ; X64-NEXT: orq %rcx, %rdx ; X64-NEXT: jmpq *%rdx ; X64-NEXT: .LBB6_3: # Block address taken ; X64-NEXT: # %bb1 ; X64-NEXT: cmpq $.LBB6_3, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $7, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .LBB6_2: # %bb0 ; X64-NEXT: cmovbeq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $2, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .LBB6_4: # Block address taken ; X64-NEXT: # %bb2 ; X64-NEXT: cmpq $.LBB6_4, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $13, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .LBB6_5: # Block address taken ; X64-NEXT: # %bb3 ; X64-NEXT: cmpq $.LBB6_5, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $42, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; X64-NEXT: .LBB6_6: # Block address taken ; X64-NEXT: # %bb5 ; X64-NEXT: cmpq $.LBB6_6, %rdx ; X64-NEXT: cmovneq %rax, %rcx ; X64-NEXT: shlq $47, %rcx ; X64-NEXT: movl $11, %eax ; X64-NEXT: orq %rcx, %rsp ; X64-NEXT: retq ; ; X64-PIC-LABEL: test_switch_jumptable: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: movq %rsp, %rcx ; X64-PIC-NEXT: movq $-1, %rax ; X64-PIC-NEXT: sarq $63, %rcx ; X64-PIC-NEXT: cmpl $3, %edi ; X64-PIC-NEXT: ja .LBB6_2 ; X64-PIC-NEXT: # %bb.1: # %entry ; X64-PIC-NEXT: cmovaq %rax, %rcx ; X64-PIC-NEXT: movl %edi, %edx ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: movslq (%rsi,%rdx,4), %rdx ; X64-PIC-NEXT: addq %rsi, %rdx ; X64-PIC-NEXT: orq %rcx, %rdx ; X64-PIC-NEXT: jmpq *%rdx ; X64-PIC-NEXT: .LBB6_3: # Block address taken ; X64-PIC-NEXT: # %bb1 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $7, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .LBB6_2: # %bb0 ; X64-PIC-NEXT: cmovbeq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $2, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .LBB6_4: # Block address taken ; X64-PIC-NEXT: # %bb2 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $13, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .LBB6_5: # Block address taken ; X64-PIC-NEXT: # %bb3 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $42, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; X64-PIC-NEXT: .LBB6_6: # Block address taken ; X64-PIC-NEXT: # %bb5 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: cmpq %rsi, %rdx ; X64-PIC-NEXT: cmovneq %rax, %rcx ; X64-PIC-NEXT: shlq $47, %rcx ; X64-PIC-NEXT: movl $11, %eax ; X64-PIC-NEXT: orq %rcx, %rsp ; X64-PIC-NEXT: retq ; ; X64-RETPOLINE-LABEL: test_switch_jumptable: ; X64-RETPOLINE: # %bb.0: # %entry ; X64-RETPOLINE-NEXT: movq %rsp, %rcx ; X64-RETPOLINE-NEXT: movq $-1, %rax ; X64-RETPOLINE-NEXT: sarq $63, %rcx ; X64-RETPOLINE-NEXT: cmpl $1, %edi ; X64-RETPOLINE-NEXT: jg .LBB7_4 ; X64-RETPOLINE-NEXT: # %bb.1: # %entry ; X64-RETPOLINE-NEXT: cmovgq %rax, %rcx ; X64-RETPOLINE-NEXT: testl %edi, %edi ; X64-RETPOLINE-NEXT: je .LBB7_7 ; X64-RETPOLINE-NEXT: # %bb.2: # %entry ; X64-RETPOLINE-NEXT: cmoveq %rax, %rcx ; X64-RETPOLINE-NEXT: cmpl $1, %edi ; X64-RETPOLINE-NEXT: jne .LBB7_6 ; X64-RETPOLINE-NEXT: # %bb.3: # %bb2 ; X64-RETPOLINE-NEXT: cmovneq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $13, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq ; X64-RETPOLINE-NEXT: .LBB7_4: # %entry ; X64-RETPOLINE-NEXT: cmovleq %rax, %rcx ; X64-RETPOLINE-NEXT: cmpl $2, %edi ; X64-RETPOLINE-NEXT: je .LBB7_8 ; X64-RETPOLINE-NEXT: # %bb.5: # %entry ; X64-RETPOLINE-NEXT: cmoveq %rax, %rcx ; X64-RETPOLINE-NEXT: cmpl $3, %edi ; X64-RETPOLINE-NEXT: jne .LBB7_6 ; X64-RETPOLINE-NEXT: # %bb.9: # %bb5 ; X64-RETPOLINE-NEXT: cmovneq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $11, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq ; X64-RETPOLINE-NEXT: .LBB7_6: ; X64-RETPOLINE-NEXT: cmoveq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $2, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq ; X64-RETPOLINE-NEXT: .LBB7_7: # %bb1 ; X64-RETPOLINE-NEXT: cmovneq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $7, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq ; X64-RETPOLINE-NEXT: .LBB7_8: # %bb3 ; X64-RETPOLINE-NEXT: cmovneq %rax, %rcx ; X64-RETPOLINE-NEXT: shlq $47, %rcx ; X64-RETPOLINE-NEXT: movl $42, %eax ; X64-RETPOLINE-NEXT: orq %rcx, %rsp ; X64-RETPOLINE-NEXT: retq entry: switch i32 %idx, label %bb0 [ i32 0, label %bb1 i32 1, label %bb2 i32 2, label %bb3 i32 3, label %bb5 ] bb0: ret i32 2 bb1: ret i32 7 bb2: ret i32 13 bb3: ret i32 42 bb5: ret i32 11 } ; This function's switch is crafted to trigger jump-table lowering in the x86 ; backend so that we can test how the exact jump table lowering behaves, but ; also arranges for fallthroughs from case to case to ensure that this pattern ; too can be handled. define dso_local i32 @test_switch_jumptable_fallthrough(i32 %idx, i32* %a.ptr, i32* %b.ptr, i32* %c.ptr, i32* %d.ptr) nounwind { ; X64-LABEL: test_switch_jumptable_fallthrough: ; X64: # %bb.0: # %entry ; X64-NEXT: movq %rsp, %r9 ; X64-NEXT: movq $-1, %r10 ; X64-NEXT: sarq $63, %r9 ; X64-NEXT: cmpl $3, %edi ; X64-NEXT: ja .LBB7_2 ; X64-NEXT: # %bb.1: # %entry ; X64-NEXT: cmovaq %r10, %r9 ; X64-NEXT: xorl %eax, %eax ; X64-NEXT: movl %edi, %esi ; X64-NEXT: movq .LJTI7_0(,%rsi,8), %rsi ; X64-NEXT: orq %r9, %rsi ; X64-NEXT: jmpq *%rsi ; X64-NEXT: .LBB7_2: # %bb0 ; X64-NEXT: cmovbeq %r10, %r9 ; X64-NEXT: movl (%rsi), %eax ; X64-NEXT: orl %r9d, %eax ; X64-NEXT: movq $.LBB7_3, %rsi ; X64-NEXT: .LBB7_3: # Block address taken ; X64-NEXT: # %bb1 ; X64-NEXT: cmpq $.LBB7_3, %rsi ; X64-NEXT: cmovneq %r10, %r9 ; X64-NEXT: addl (%rdx), %eax ; X64-NEXT: orl %r9d, %eax ; X64-NEXT: movq $.LBB7_4, %rsi ; X64-NEXT: .LBB7_4: # Block address taken ; X64-NEXT: # %bb2 ; X64-NEXT: cmpq $.LBB7_4, %rsi ; X64-NEXT: cmovneq %r10, %r9 ; X64-NEXT: addl (%rcx), %eax ; X64-NEXT: orl %r9d, %eax ; X64-NEXT: movq $.LBB7_5, %rsi ; X64-NEXT: .LBB7_5: # Block address taken ; X64-NEXT: # %bb3 ; X64-NEXT: cmpq $.LBB7_5, %rsi ; X64-NEXT: cmovneq %r10, %r9 ; X64-NEXT: addl (%r8), %eax ; X64-NEXT: orl %r9d, %eax ; X64-NEXT: movq $.LBB7_6, %rsi ; X64-NEXT: .LBB7_6: # Block address taken ; X64-NEXT: # %bb4 ; X64-NEXT: cmpq $.LBB7_6, %rsi ; X64-NEXT: cmovneq %r10, %r9 ; X64-NEXT: shlq $47, %r9 ; X64-NEXT: orq %r9, %rsp ; X64-NEXT: retq ; ; X64-PIC-LABEL: test_switch_jumptable_fallthrough: ; X64-PIC: # %bb.0: # %entry ; X64-PIC-NEXT: movq %rsp, %r9 ; X64-PIC-NEXT: movq $-1, %r10 ; X64-PIC-NEXT: sarq $63, %r9 ; X64-PIC-NEXT: cmpl $3, %edi ; X64-PIC-NEXT: ja .LBB7_2 ; X64-PIC-NEXT: # %bb.1: # %entry ; X64-PIC-NEXT: cmovaq %r10, %r9 ; X64-PIC-NEXT: xorl %eax, %eax ; X64-PIC-NEXT: movl %edi, %esi ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rdi ; X64-PIC-NEXT: movslq (%rdi,%rsi,4), %rsi ; X64-PIC-NEXT: addq %rdi, %rsi ; X64-PIC-NEXT: orq %r9, %rsi ; X64-PIC-NEXT: jmpq *%rsi ; X64-PIC-NEXT: .LBB7_2: # %bb0 ; X64-PIC-NEXT: cmovbeq %r10, %r9 ; X64-PIC-NEXT: movl (%rsi), %eax ; X64-PIC-NEXT: orl %r9d, %eax ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: .LBB7_3: # Block address taken ; X64-PIC-NEXT: # %bb1 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rdi ; X64-PIC-NEXT: cmpq %rdi, %rsi ; X64-PIC-NEXT: cmovneq %r10, %r9 ; X64-PIC-NEXT: addl (%rdx), %eax ; X64-PIC-NEXT: orl %r9d, %eax ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: .LBB7_4: # Block address taken ; X64-PIC-NEXT: # %bb2 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rdx ; X64-PIC-NEXT: cmpq %rdx, %rsi ; X64-PIC-NEXT: cmovneq %r10, %r9 ; X64-PIC-NEXT: addl (%rcx), %eax ; X64-PIC-NEXT: orl %r9d, %eax ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: .LBB7_5: # Block address taken ; X64-PIC-NEXT: # %bb3 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rcx ; X64-PIC-NEXT: cmpq %rcx, %rsi ; X64-PIC-NEXT: cmovneq %r10, %r9 ; X64-PIC-NEXT: addl (%r8), %eax ; X64-PIC-NEXT: orl %r9d, %eax ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rsi ; X64-PIC-NEXT: .LBB7_6: # Block address taken ; X64-PIC-NEXT: # %bb4 ; X64-PIC-NEXT: leaq {{.*}}(%rip), %rcx ; X64-PIC-NEXT: cmpq %rcx, %rsi ; X64-PIC-NEXT: cmovneq %r10, %r9 ; X64-PIC-NEXT: shlq $47, %r9 ; X64-PIC-NEXT: orq %r9, %rsp ; X64-PIC-NEXT: retq ; ; X64-RETPOLINE-LABEL: test_switch_jumptable_fallthrough: ; X64-RETPOLINE: # %bb.0: # %entry ; X64-RETPOLINE-NEXT: movq %rsp, %r9 ; X64-RETPOLINE-NEXT: movq $-1, %r10 ; X64-RETPOLINE-NEXT: sarq $63, %r9 ; X64-RETPOLINE-NEXT: xorl %eax, %eax ; X64-RETPOLINE-NEXT: cmpl $1, %edi ; X64-RETPOLINE-NEXT: jg .LBB8_5 ; X64-RETPOLINE-NEXT: # %bb.1: # %entry ; X64-RETPOLINE-NEXT: cmovgq %r10, %r9 ; X64-RETPOLINE-NEXT: testl %edi, %edi ; X64-RETPOLINE-NEXT: je .LBB8_2 ; X64-RETPOLINE-NEXT: # %bb.3: # %entry ; X64-RETPOLINE-NEXT: cmoveq %r10, %r9 ; X64-RETPOLINE-NEXT: cmpl $1, %edi ; X64-RETPOLINE-NEXT: jne .LBB8_8 ; X64-RETPOLINE-NEXT: # %bb.4: ; X64-RETPOLINE-NEXT: cmovneq %r10, %r9 ; X64-RETPOLINE-NEXT: jmp .LBB8_10 ; X64-RETPOLINE-NEXT: .LBB8_5: # %entry ; X64-RETPOLINE-NEXT: cmovleq %r10, %r9 ; X64-RETPOLINE-NEXT: cmpl $2, %edi ; X64-RETPOLINE-NEXT: je .LBB8_6 ; X64-RETPOLINE-NEXT: # %bb.7: # %entry ; X64-RETPOLINE-NEXT: cmoveq %r10, %r9 ; X64-RETPOLINE-NEXT: cmpl $3, %edi ; X64-RETPOLINE-NEXT: jne .LBB8_8 ; X64-RETPOLINE-NEXT: # %bb.13: ; X64-RETPOLINE-NEXT: cmovneq %r10, %r9 ; X64-RETPOLINE-NEXT: jmp .LBB8_12 ; X64-RETPOLINE-NEXT: .LBB8_8: ; X64-RETPOLINE-NEXT: cmoveq %r10, %r9 ; X64-RETPOLINE-NEXT: movl (%rsi), %eax ; X64-RETPOLINE-NEXT: orl %r9d, %eax ; X64-RETPOLINE-NEXT: jmp .LBB8_9 ; X64-RETPOLINE-NEXT: .LBB8_2: ; X64-RETPOLINE-NEXT: cmovneq %r10, %r9 ; X64-RETPOLINE-NEXT: .LBB8_9: # %bb1 ; X64-RETPOLINE-NEXT: addl (%rdx), %eax ; X64-RETPOLINE-NEXT: orl %r9d, %eax ; X64-RETPOLINE-NEXT: .LBB8_10: # %bb2 ; X64-RETPOLINE-NEXT: addl (%rcx), %eax ; X64-RETPOLINE-NEXT: orl %r9d, %eax ; X64-RETPOLINE-NEXT: jmp .LBB8_11 ; X64-RETPOLINE-NEXT: .LBB8_6: ; X64-RETPOLINE-NEXT: cmovneq %r10, %r9 ; X64-RETPOLINE-NEXT: .LBB8_11: # %bb3 ; X64-RETPOLINE-NEXT: addl (%r8), %eax ; X64-RETPOLINE-NEXT: orl %r9d, %eax ; X64-RETPOLINE-NEXT: .LBB8_12: # %bb4 ; X64-RETPOLINE-NEXT: shlq $47, %r9 ; X64-RETPOLINE-NEXT: orq %r9, %rsp ; X64-RETPOLINE-NEXT: retq entry: switch i32 %idx, label %bb0 [ i32 0, label %bb1 i32 1, label %bb2 i32 2, label %bb3 i32 3, label %bb4 ] bb0: %a = load i32, i32* %a.ptr br label %bb1 bb1: %b.phi = phi i32 [ 0, %entry ], [ %a, %bb0 ] %b = load i32, i32* %b.ptr %b.sum = add i32 %b.phi, %b br label %bb2 bb2: %c.phi = phi i32 [ 0, %entry ], [ %b.sum, %bb1 ] %c = load i32, i32* %c.ptr %c.sum = add i32 %c.phi, %c br label %bb3 bb3: %d.phi = phi i32 [ 0, %entry ], [ %c.sum, %bb2 ] %d = load i32, i32* %d.ptr %d.sum = add i32 %d.phi, %d br label %bb4 bb4: %e.phi = phi i32 [ 0, %entry ], [ %d.sum, %bb3 ] ret i32 %e.phi }