mirror of
https://github.com/c64scene-ar/llvm-6502.git
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899eaa3569
Optimize trivial branches in CodeGenPrepare, which often get created from the lowering of objectsize intrinsics. Unfortunately, a number of tests were relying on llc not optimizing trivial branches, so I had to add an option to allow them to continue to test what they originally tested. This fixes <rdar://problem/8785296> and <rdar://problem/9112893>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127498 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
697 B
LLVM
47 lines
697 B
LLVM
; RUN: llc < %s -march=arm -disable-cgp-branch-opts | FileCheck %s
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define i32 @f1() {
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; CHECK: f1
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; CHECK: mov r0, #0
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ret i32 0
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}
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define i32 @f2() {
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; CHECK: f2
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; CHECK: mov r0, #255
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ret i32 255
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}
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define i32 @f3() {
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; CHECK: f3
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; CHECK: mov r0, #1, 24
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ret i32 256
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}
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define i32 @f4() {
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; CHECK: f4
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; CHECK: orr{{.*}}#1, 24
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ret i32 257
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}
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define i32 @f5() {
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; CHECK: f5
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; CHECK: mov r0, #255, 2
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ret i32 -1073741761
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}
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define i32 @f6() {
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; CHECK: f6
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; CHECK: mov r0, #63, 28
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ret i32 1008
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}
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define void @f7(i32 %a) {
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; CHECK: f7
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; CHECK: cmp r0, #1, 16
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%b = icmp ugt i32 %a, 65536
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br i1 %b, label %r, label %r
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r:
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ret void
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}
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