forked from OSchip/llvm-project
289 lines
8.3 KiB
LLVM
289 lines
8.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s
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%struct.obj = type { i64 }
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define void @_Z7releaseP3obj(%struct.obj* nocapture %o) nounwind uwtable ssp {
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; CHECK-LABEL: _Z7releaseP3obj:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: decq (%rdi)
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; CHECK-NEXT: je .LBB0_2
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; CHECK-NEXT: # %bb.1: # %return
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB0_2: # %if.end
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; CHECK-NEXT: jmp free # TAILCALL
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entry:
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%refcnt = getelementptr inbounds %struct.obj, %struct.obj* %o, i64 0, i32 0
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%0 = load i64, i64* %refcnt, align 8
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%dec = add i64 %0, -1
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store i64 %dec, i64* %refcnt, align 8
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%tobool = icmp eq i64 %dec, 0
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br i1 %tobool, label %if.end, label %return
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if.end: ; preds = %entry
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%1 = bitcast %struct.obj* %o to i8*
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tail call void @free(i8* %1)
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br label %return
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return: ; preds = %entry, %if.end
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ret void
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}
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@c = common global i64 0, align 8
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@a = common global i32 0, align 4
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@.str = private unnamed_addr constant [5 x i8] c"%ld\0A\00", align 1
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@b = common global i32 0, align 4
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define i32 @test() nounwind uwtable ssp {
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; CHECK-LABEL: test:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: movq {{.*}}(%rip), %rsi
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: decq %rsi
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; CHECK-NEXT: movq %rsi, {{.*}}(%rip)
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; CHECK-NEXT: setne %al
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; CHECK-NEXT: movl %eax, {{.*}}(%rip)
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; CHECK-NEXT: movl $.L.str, %edi
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: callq printf
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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entry:
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%0 = load i64, i64* @c, align 8
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%dec.i = add nsw i64 %0, -1
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store i64 %dec.i, i64* @c, align 8
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%tobool.i = icmp ne i64 %dec.i, 0
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%lor.ext.i = zext i1 %tobool.i to i32
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store i32 %lor.ext.i, i32* @a, align 4
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%call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i64 %dec.i) nounwind
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ret i32 0
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}
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define i32 @test2() nounwind uwtable ssp {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: movq {{.*}}(%rip), %rsi
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: addq $-1, %rsi
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; CHECK-NEXT: setb %al
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; CHECK-NEXT: movq %rsi, {{.*}}(%rip)
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; CHECK-NEXT: movl %eax, {{.*}}(%rip)
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; CHECK-NEXT: movl $.L.str, %edi
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: callq printf
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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entry:
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%0 = load i64, i64* @c, align 8
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%dec.i = add nsw i64 %0, -1
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store i64 %dec.i, i64* @c, align 8
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%tobool.i = icmp ne i64 %0, 0
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%lor.ext.i = zext i1 %tobool.i to i32
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store i32 %lor.ext.i, i32* @a, align 4
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%call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i64 %dec.i) nounwind
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ret i32 0
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}
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declare i32 @printf(i8* nocapture, ...) nounwind
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declare void @free(i8* nocapture) nounwind
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%struct.obj2 = type { i64, i32, i16, i8 }
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declare void @other(%struct.obj2* ) nounwind;
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define void @example_dec(%struct.obj2* %o) nounwind uwtable ssp {
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; 64 bit dec
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; CHECK-LABEL: example_dec:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: decq (%rdi)
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; CHECK-NEXT: jne .LBB3_4
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; CHECK-NEXT: # %bb.1: # %if.end
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; CHECK-NEXT: decl 8(%rdi)
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; CHECK-NEXT: jne .LBB3_4
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; CHECK-NEXT: # %bb.2: # %if.end1
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; CHECK-NEXT: decw 12(%rdi)
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; CHECK-NEXT: jne .LBB3_4
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; CHECK-NEXT: # %bb.3: # %if.end2
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; CHECK-NEXT: decb 14(%rdi)
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; CHECK-NEXT: je .LBB3_5
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; CHECK-NEXT: .LBB3_4: # %return
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB3_5: # %if.end4
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; CHECK-NEXT: jmp other # TAILCALL
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entry:
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%s64 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 0
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%0 = load i64, i64* %s64, align 8
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%dec = add i64 %0, -1
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store i64 %dec, i64* %s64, align 8
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%tobool = icmp eq i64 %dec, 0
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br i1 %tobool, label %if.end, label %return
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; 32 bit dec
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if.end:
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%s32 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 1
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%1 = load i32, i32* %s32, align 4
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%dec1 = add i32 %1, -1
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store i32 %dec1, i32* %s32, align 4
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%tobool2 = icmp eq i32 %dec1, 0
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br i1 %tobool2, label %if.end1, label %return
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; 16 bit dec
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if.end1:
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%s16 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 2
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%2 = load i16, i16* %s16, align 2
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%dec2 = add i16 %2, -1
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store i16 %dec2, i16* %s16, align 2
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%tobool3 = icmp eq i16 %dec2, 0
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br i1 %tobool3, label %if.end2, label %return
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; 8 bit dec
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if.end2:
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%s8 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 3
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%3 = load i8, i8* %s8
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%dec3 = add i8 %3, -1
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store i8 %dec3, i8* %s8
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%tobool4 = icmp eq i8 %dec3, 0
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br i1 %tobool4, label %if.end4, label %return
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if.end4:
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tail call void @other(%struct.obj2* %o) nounwind
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br label %return
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return: ; preds = %if.end4, %if.end, %entry
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ret void
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}
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define void @example_inc(%struct.obj2* %o) nounwind uwtable ssp {
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; 64 bit inc
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; CHECK-LABEL: example_inc:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: incq (%rdi)
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; CHECK-NEXT: jne .LBB4_4
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; CHECK-NEXT: # %bb.1: # %if.end
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; CHECK-NEXT: incl 8(%rdi)
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; CHECK-NEXT: jne .LBB4_4
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; CHECK-NEXT: # %bb.2: # %if.end1
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; CHECK-NEXT: incw 12(%rdi)
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; CHECK-NEXT: jne .LBB4_4
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; CHECK-NEXT: # %bb.3: # %if.end2
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; CHECK-NEXT: incb 14(%rdi)
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; CHECK-NEXT: jne .LBB4_4
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; CHECK-NEXT: # %bb.5: # %if.end4
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; CHECK-NEXT: jmp other # TAILCALL
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; CHECK-NEXT: .LBB4_4: # %return
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; CHECK-NEXT: retq
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entry:
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%s64 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 0
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%0 = load i64, i64* %s64, align 8
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%inc = add i64 %0, 1
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store i64 %inc, i64* %s64, align 8
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%tobool = icmp eq i64 %inc, 0
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br i1 %tobool, label %if.end, label %return
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; 32 bit inc
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if.end:
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%s32 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 1
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%1 = load i32, i32* %s32, align 4
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%inc1 = add i32 %1, 1
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store i32 %inc1, i32* %s32, align 4
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%tobool2 = icmp eq i32 %inc1, 0
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br i1 %tobool2, label %if.end1, label %return
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; 16 bit inc
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if.end1:
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%s16 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 2
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%2 = load i16, i16* %s16, align 2
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%inc2 = add i16 %2, 1
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store i16 %inc2, i16* %s16, align 2
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%tobool3 = icmp eq i16 %inc2, 0
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br i1 %tobool3, label %if.end2, label %return
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; 8 bit inc
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if.end2:
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%s8 = getelementptr inbounds %struct.obj2, %struct.obj2* %o, i64 0, i32 3
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%3 = load i8, i8* %s8
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%inc3 = add i8 %3, 1
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store i8 %inc3, i8* %s8
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%tobool4 = icmp eq i8 %inc3, 0
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br i1 %tobool4, label %if.end4, label %return
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if.end4:
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tail call void @other(%struct.obj2* %o) nounwind
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br label %return
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return:
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ret void
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}
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; Deal with TokenFactor chain
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; rdar://11236106
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@foo = external global i64*, align 8
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define void @test3() nounwind ssp {
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; CHECK-LABEL: test3:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: movq {{.*}}(%rip), %rax
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; CHECK-NEXT: decq 16(%rax)
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; CHECK-NEXT: je .LBB5_2
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; CHECK-NEXT: # %bb.1: # %if.end
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB5_2: # %if.then
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; CHECK-NEXT: jmp baz # TAILCALL
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entry:
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%0 = load i64*, i64** @foo, align 8
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%arrayidx = getelementptr inbounds i64, i64* %0, i64 2
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%1 = load i64, i64* %arrayidx, align 8
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%dec = add i64 %1, -1
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store i64 %dec, i64* %arrayidx, align 8
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%cmp = icmp eq i64 %dec, 0
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @baz() nounwind
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br label %if.end
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if.end:
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ret void
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}
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declare void @baz()
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; Avoid creating a cycle in the DAG which would trigger an assert in the
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; scheduler.
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; PR12565
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; rdar://11451474
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@x = external global i32, align 4
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@y = external global i32, align 4
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@z = external global i32, align 4
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define void @test4() nounwind uwtable ssp {
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; CHECK-LABEL: test4:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: decl {{.*}}(%rip)
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; CHECK-NEXT: je .LBB6_2
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; CHECK-NEXT: # %bb.1: # %entry
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; CHECK-NEXT: movl {{.*}}(%rip), %eax
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; CHECK-NEXT: .LBB6_2: # %entry
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; CHECK-NEXT: movl %eax, {{.*}}(%rip)
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; CHECK-NEXT: retq
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entry:
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%0 = load i32, i32* @x, align 4
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%1 = load i32, i32* @y, align 4
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%dec = add nsw i32 %1, -1
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store i32 %dec, i32* @y, align 4
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%tobool.i = icmp ne i32 %dec, 0
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%cond.i = select i1 %tobool.i, i32 %0, i32 0
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store i32 %cond.i, i32* @z, align 4
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ret void
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}
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