llvm-project/llvm/test/CodeGen/X86/pr12360.ll

47 lines
852 B
LLVM
Raw Normal View History

; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
define zeroext i1 @f1(i8* %x) {
; CHECK-LABEL: f1:
; CHECK: movb (%rdi), %al
; CHECK-NEXT: ret
entry:
%0 = load i8, i8* %x, align 1, !range !0
%tobool = trunc i8 %0 to i1
ret i1 %tobool
}
define zeroext i1 @f2(i8* %x) {
; CHECK-LABEL: f2:
; CHECK: movb (%rdi), %al
; CHECK-NEXT: ret
entry:
%0 = load i8, i8* %x, align 1, !range !0
%tobool = icmp ne i8 %0, 0
ret i1 %tobool
}
IR: Make metadata typeless in assembly Now that `Metadata` is typeless, reflect that in the assembly. These are the matching assembly changes for the metadata/value split in r223802. - Only use the `metadata` type when referencing metadata from a call intrinsic -- i.e., only when it's used as a `Value`. - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode` when referencing it from call intrinsics. So, assembly like this: define @foo(i32 %v) { call void @llvm.foo(metadata !{i32 %v}, metadata !0) call void @llvm.foo(metadata !{i32 7}, metadata !0) call void @llvm.foo(metadata !1, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{metadata !3}, metadata !0) ret void, !bar !2 } !0 = metadata !{metadata !2} !1 = metadata !{i32* @global} !2 = metadata !{metadata !3} !3 = metadata !{} turns into this: define @foo(i32 %v) { call void @llvm.foo(metadata i32 %v, metadata !0) call void @llvm.foo(metadata i32 7, metadata !0) call void @llvm.foo(metadata i32* @global, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{!3}, metadata !0) ret void, !bar !2 } !0 = !{!2} !1 = !{i32* @global} !2 = !{!3} !3 = !{} I wrote an upgrade script that handled almost all of the tests in llvm and many of the tests in cfe (even handling many `CHECK` lines). I've attached it (or will attach it in a moment if you're speedy) to PR21532 to help everyone update their out-of-tree testcases. This is part of PR21532. llvm-svn: 224257
2014-12-16 03:07:53 +08:00
!0 = !{i8 0, i8 2}
; check that we don't build a "trunc" from i1 to i1, which would assert.
define zeroext i1 @f3(i1 %x) {
; CHECK-LABEL: f3:
entry:
%tobool = icmp ne i1 %x, 0
ret i1 %tobool
}
; check that we don't build a trunc when other bits are needed
define zeroext i1 @f4(i32 %x) {
; CHECK-LABEL: f4:
; CHECK: and
entry:
%y = and i32 %x, 32768
%z = icmp ne i32 %y, 0
ret i1 %z
}