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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/cond-loop.ll
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derek.holloway 7502bf64a4
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66 lines
1.6 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc < %s -mtriple=x86_64 | FileCheck %s
define void @f1(i64 %a, i64 %b) {
; CHECK-LABEL: f1:
; CHECK: # %bb.0:
; CHECK-NEXT: cmpq %rsi, %rdi
; CHECK-NEXT: .Ltmp0:
; CHECK-NEXT: jb .Ltmp0
; CHECK-NEXT: retq
%cmp = icmp ult i64 %a, %b
call void @llvm.cond.loop(i1 %cmp)
ret void
}
define void @f2() {
; CHECK-LABEL: f2:
; CHECK: # %bb.0:
; CHECK-NEXT: movb $1, %al
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: .Ltmp1:
; CHECK-NEXT: jne .Ltmp1
; CHECK-NEXT: retq
call void @llvm.cond.loop(i1 true)
ret void
}
define void @f3(i1 %p) {
; CHECK-LABEL: f3:
; CHECK: # %bb.0:
; CHECK-NEXT: testb $1, %dil
; CHECK-NEXT: .Ltmp2:
; CHECK-NEXT: jne .Ltmp2
; CHECK-NEXT: retq
call void @llvm.cond.loop(i1 %p)
ret void
}
define void @f4(i32 %a, i32 %b) {
; CHECK-LABEL: f4:
; CHECK: # %bb.0:
; CHECK-NEXT: addl %esi, %edi
; CHECK-NEXT: .Ltmp3:
; CHECK-NEXT: jo .Ltmp3
; CHECK-NEXT: retq
%add = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
%overflow = extractvalue { i32, i1 } %add, 1
tail call void @llvm.cond.loop(i1 %overflow)
ret void
}
define void @f5(ptr %p) {
; CHECK-LABEL: f5:
; CHECK: # %bb.0:
; CHECK-NEXT: testb $4, 10(%rdi)
; CHECK-NEXT: .Ltmp4:
; CHECK-NEXT: jne .Ltmp4
; CHECK-NEXT: retq
%gep = getelementptr inbounds nuw i8, ptr %p, i64 10
%load = load i8, ptr %gep, align 2
%and = and i8 %load, 4
%cmp = icmp ne i8 %and, 0
call void @llvm.cond.loop(i1 %cmp)
ret void
}