; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -x86-seses-enable-without-lvi-cfi %s -o - | FileCheck %s ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -x86-seses-enable-without-lvi-cfi -x86-seses-one-lfence-per-bb %s -o - | FileCheck %s --check-prefix=X86-ONE-LFENCE ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -x86-seses-enable-without-lvi-cfi -x86-seses-omit-branch-lfences %s -o - | FileCheck %s --check-prefix=X86-OMIT-BR ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -x86-seses-enable-without-lvi-cfi -x86-seses-only-lfence-non-const %s -o - | FileCheck %s --check-prefix=X86-NON-CONST define dso_local void @_Z4buzzv() { ; CHECK-LABEL: _Z4buzzv: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: lfence ; CHECK-NEXT: movl $10, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: retq ; ; X86-ONE-LFENCE-LABEL: _Z4buzzv: ; X86-ONE-LFENCE: # %bb.0: # %entry ; X86-ONE-LFENCE-NEXT: lfence ; X86-ONE-LFENCE-NEXT: movl $10, -{{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: retq ; ; X86-OMIT-BR-LABEL: _Z4buzzv: ; X86-OMIT-BR: # %bb.0: # %entry ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movl $10, -{{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: retq ; ; X86-NON-CONST-LABEL: _Z4buzzv: ; X86-NON-CONST: # %bb.0: # %entry ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movl $10, -{{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: retq entry: %a = alloca i32, align 4 store i32 10, i32* %a, align 4 ret void } define dso_local i32 @_Z3barPi(i32* %p) { ; CHECK-LABEL: _Z3barPi: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: lfence ; CHECK-NEXT: movq %rdi, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: lfence ; CHECK-NEXT: movl $4, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: lfence ; CHECK-NEXT: cmpl $3, (%rdi) ; CHECK-NEXT: lfence ; CHECK-NEXT: jg .LBB1_2 ; CHECK-NEXT: # %bb.1: # %if.then ; CHECK-NEXT: lfence ; CHECK-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; CHECK-NEXT: lfence ; CHECK-NEXT: movslq (%rax), %rax ; CHECK-NEXT: lfence ; CHECK-NEXT: movl -24(%rsp,%rax,4), %eax ; CHECK-NEXT: lfence ; CHECK-NEXT: movl %eax, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: lfence ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB1_2: # %if.else ; CHECK-NEXT: lfence ; CHECK-NEXT: movl $-1, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: lfence ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: retq ; ; X86-ONE-LFENCE-LABEL: _Z3barPi: ; X86-ONE-LFENCE: # %bb.0: # %entry ; X86-ONE-LFENCE-NEXT: lfence ; X86-ONE-LFENCE-NEXT: movq %rdi, -{{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: movl $4, -{{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: cmpl $3, (%rdi) ; X86-ONE-LFENCE-NEXT: jg .LBB1_2 ; X86-ONE-LFENCE-NEXT: # %bb.1: # %if.then ; X86-ONE-LFENCE-NEXT: lfence ; X86-ONE-LFENCE-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; X86-ONE-LFENCE-NEXT: movslq (%rax), %rax ; X86-ONE-LFENCE-NEXT: movl -24(%rsp,%rax,4), %eax ; X86-ONE-LFENCE-NEXT: movl %eax, -{{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; X86-ONE-LFENCE-NEXT: retq ; X86-ONE-LFENCE-NEXT: .LBB1_2: # %if.else ; X86-ONE-LFENCE-NEXT: lfence ; X86-ONE-LFENCE-NEXT: movl $-1, -{{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; X86-ONE-LFENCE-NEXT: retq ; ; X86-OMIT-BR-LABEL: _Z3barPi: ; X86-OMIT-BR: # %bb.0: # %entry ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movq %rdi, -{{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movl $4, -{{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: cmpl $3, (%rdi) ; X86-OMIT-BR-NEXT: jg .LBB1_2 ; X86-OMIT-BR-NEXT: # %bb.1: # %if.then ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movslq (%rax), %rax ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movl -24(%rsp,%rax,4), %eax ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movl %eax, -{{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; X86-OMIT-BR-NEXT: retq ; X86-OMIT-BR-NEXT: .LBB1_2: # %if.else ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movl $-1, -{{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; X86-OMIT-BR-NEXT: retq ; ; X86-NON-CONST-LABEL: _Z3barPi: ; X86-NON-CONST: # %bb.0: # %entry ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movq %rdi, -{{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movl $4, -{{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: cmpl $3, (%rdi) ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: jg .LBB1_2 ; X86-NON-CONST-NEXT: # %bb.1: # %if.then ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movslq (%rax), %rax ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movl -24(%rsp,%rax,4), %eax ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movl %eax, -{{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; X86-NON-CONST-NEXT: retq ; X86-NON-CONST-NEXT: .LBB1_2: # %if.else ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movl $-1, -{{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; X86-NON-CONST-NEXT: retq entry: %retval = alloca i32, align 4 %p.addr = alloca i32*, align 8 %a = alloca [4 x i32], align 16 %len = alloca i32, align 4 store i32* %p, i32** %p.addr, align 8 %0 = bitcast [4 x i32]* %a to i8* store i32 4, i32* %len, align 4 %1 = load i32*, i32** %p.addr, align 8 %2 = load i32, i32* %1, align 4 %3 = load i32, i32* %len, align 4 %cmp = icmp slt i32 %2, %3 br i1 %cmp, label %if.then, label %if.else if.then: ; preds = %entry %4 = load i32*, i32** %p.addr, align 8 %5 = load i32, i32* %4, align 4 %idxprom = sext i32 %5 to i64 %arrayidx = getelementptr inbounds [4 x i32], [4 x i32]* %a, i64 0, i64 %idxprom %6 = load i32, i32* %arrayidx, align 4 store i32 %6, i32* %retval, align 4 br label %return if.else: ; preds = %entry store i32 -1, i32* %retval, align 4 br label %return return: ; preds = %if.else, %if.then %7 = load i32, i32* %retval, align 4 ret i32 %7 } define dso_local i32 (i32*)* @_Z3bazv() { ; CHECK-LABEL: _Z3bazv: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: lfence ; CHECK-NEXT: movq $_Z3barPi, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: lfence ; CHECK-NEXT: #APP ; CHECK-NEXT: #NO_APP ; CHECK-NEXT: lfence ; CHECK-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; CHECK-NEXT: retq ; ; X86-ONE-LFENCE-LABEL: _Z3bazv: ; X86-ONE-LFENCE: # %bb.0: # %entry ; X86-ONE-LFENCE-NEXT: lfence ; X86-ONE-LFENCE-NEXT: movq $_Z3barPi, -{{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: #APP ; X86-ONE-LFENCE-NEXT: #NO_APP ; X86-ONE-LFENCE-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; X86-ONE-LFENCE-NEXT: retq ; ; X86-OMIT-BR-LABEL: _Z3bazv: ; X86-OMIT-BR: # %bb.0: # %entry ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movq $_Z3barPi, -{{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: #APP ; X86-OMIT-BR-NEXT: #NO_APP ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; X86-OMIT-BR-NEXT: retq ; ; X86-NON-CONST-LABEL: _Z3bazv: ; X86-NON-CONST: # %bb.0: # %entry ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movq $_Z3barPi, -{{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: #APP ; X86-NON-CONST-NEXT: #NO_APP ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movq -{{[0-9]+}}(%rsp), %rax ; X86-NON-CONST-NEXT: retq entry: %p = alloca i32 (i32*)*, align 8 store i32 (i32*)* @_Z3barPi, i32 (i32*)** %p, align 8 call void asm sideeffect "", "=*m,*m,~{dirflag},~{fpsr},~{flags}"(i32 (i32*)** %p, i32 (i32*)** %p) #3, !srcloc !2 %0 = load i32 (i32*)*, i32 (i32*)** %p, align 8 ret i32 (i32*)* %0 } define dso_local void @_Z3fooPi(i32* %p) { ; CHECK-LABEL: _Z3fooPi: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: subq $24, %rsp ; CHECK-NEXT: .cfi_def_cfa_offset 32 ; CHECK-NEXT: lfence ; CHECK-NEXT: movq %rdi, {{[0-9]+}}(%rsp) ; CHECK-NEXT: callq _Z3bazv ; CHECK-NEXT: lfence ; CHECK-NEXT: movq %rax, {{[0-9]+}}(%rsp) ; CHECK-NEXT: lfence ; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rdi ; CHECK-NEXT: callq *%rax ; CHECK-NEXT: addq $24, %rsp ; CHECK-NEXT: .cfi_def_cfa_offset 8 ; CHECK-NEXT: retq ; ; X86-ONE-LFENCE-LABEL: _Z3fooPi: ; X86-ONE-LFENCE: # %bb.0: # %entry ; X86-ONE-LFENCE-NEXT: subq $24, %rsp ; X86-ONE-LFENCE-NEXT: .cfi_def_cfa_offset 32 ; X86-ONE-LFENCE-NEXT: lfence ; X86-ONE-LFENCE-NEXT: movq %rdi, {{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: callq _Z3bazv ; X86-ONE-LFENCE-NEXT: movq %rax, {{[0-9]+}}(%rsp) ; X86-ONE-LFENCE-NEXT: movq {{[0-9]+}}(%rsp), %rdi ; X86-ONE-LFENCE-NEXT: callq *%rax ; X86-ONE-LFENCE-NEXT: addq $24, %rsp ; X86-ONE-LFENCE-NEXT: .cfi_def_cfa_offset 8 ; X86-ONE-LFENCE-NEXT: retq ; ; X86-OMIT-BR-LABEL: _Z3fooPi: ; X86-OMIT-BR: # %bb.0: # %entry ; X86-OMIT-BR-NEXT: subq $24, %rsp ; X86-OMIT-BR-NEXT: .cfi_def_cfa_offset 32 ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movq %rdi, {{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: callq _Z3bazv ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movq %rax, {{[0-9]+}}(%rsp) ; X86-OMIT-BR-NEXT: lfence ; X86-OMIT-BR-NEXT: movq {{[0-9]+}}(%rsp), %rdi ; X86-OMIT-BR-NEXT: callq *%rax ; X86-OMIT-BR-NEXT: addq $24, %rsp ; X86-OMIT-BR-NEXT: .cfi_def_cfa_offset 8 ; X86-OMIT-BR-NEXT: retq ; ; X86-NON-CONST-LABEL: _Z3fooPi: ; X86-NON-CONST: # %bb.0: # %entry ; X86-NON-CONST-NEXT: subq $24, %rsp ; X86-NON-CONST-NEXT: .cfi_def_cfa_offset 32 ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movq %rdi, {{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: callq _Z3bazv ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movq %rax, {{[0-9]+}}(%rsp) ; X86-NON-CONST-NEXT: lfence ; X86-NON-CONST-NEXT: movq {{[0-9]+}}(%rsp), %rdi ; X86-NON-CONST-NEXT: callq *%rax ; X86-NON-CONST-NEXT: addq $24, %rsp ; X86-NON-CONST-NEXT: .cfi_def_cfa_offset 8 ; X86-NON-CONST-NEXT: retq entry: %p.addr = alloca i32*, align 8 %t = alloca i32 (i32*)*, align 8 store i32* %p, i32** %p.addr, align 8 %call = call i32 (i32*)* @_Z3bazv() store i32 (i32*)* %call, i32 (i32*)** %t, align 8 %0 = load i32 (i32*)*, i32 (i32*)** %t, align 8 %1 = load i32*, i32** %p.addr, align 8 %call1 = call i32 %0(i32* %1) ret void } !2 = !{i32 233}