source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/ARM/peephole-bitcast.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 731 bytes
Line 
1; RUN: llc < %s -march=arm -mcpu=cortex-a8 | FileCheck %s
2; XFAIL: *
3; PR11364
4
5; vmov s0, r0 + vmov r0, s0 should have been optimized away.
6; rdar://9104514
7
8; Peephole leaves a dead vmovsr instruction behind, and depends on linear scan
9; to remove it.
10
11define void @t(float %x) nounwind ssp {
12entry:
13; CHECK-LABEL:     t:
14; CHECK-NOT: vmov
15; CHECK:     bl
16  %0 = bitcast float %x to i32
17  %cmp = icmp ult i32 %0, 2139095039
18  br i1 %cmp, label %if.then, label %if.end
19
20if.then:                                          ; preds = %entry
21  tail call void @doSomething(float %x) nounwind
22  br label %if.end
23
24if.end:                                           ; preds = %if.then, %entry
25  ret void
26}
27
28declare void @doSomething(float)
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