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GlobalISel: mark G_FCMP legal on float & double.

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llvm-svn: 279844
This commit is contained in:
Tim Northover 2016-08-26 17:46:19 +00:00
parent ac577545eb
commit 2f9c75fe2f
2 changed files with 39 additions and 0 deletions
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4
lib/Target/AArch64/AArch64MachineLegalizer.cpp
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@ -97,6 +97,10 @@ AArch64MachineLegalizer::AArch64MachineLegalizer() {
setAction({G_ICMP, 1, Ty}, WidenScalar);
}
setAction({G_FCMP, s1}, Legal);
setAction({G_FCMP, 1, s32}, Legal);
setAction({G_FCMP, 1, s64}, Legal);
// Extensions
for (auto Ty : { s1, s8, s16, s32, s64 }) {
setAction({G_ZEXT, Ty}, Legal);

35
test/CodeGen/AArch64/GlobalISel/legalize-fcmp.mir Normal file
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@ -0,0 +1,35 @@
# RUN: llc -O0 -run-pass=legalize-mir -global-isel %s -o - 2>&1 | FileCheck %s
--- |
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-apple-ios"
define void @test_icmp() {
entry:
ret void
}
...
---
name: test_icmp
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
- { id: 4, class: _ }
- { id: 5, class: _ }
body: |
bb.0.entry:
liveins: %x0, %x1, %x2, %x3
%0(64) = COPY %x0
%1(64) = COPY %x0
%2(8) = G_TRUNC { s32, s64 } %0
%3(8) = G_TRUNC { s32, s64 } %1
; CHECK: %4(1) = G_FCMP { s1, s64 } floatpred(oge), %0, %1
%4(1) = G_FCMP { s1, s64 } floatpred(oge), %0, %1
; CHECK: %5(1) = G_FCMP { s1, s32 } floatpred(uno), %2, %3
%5(1) = G_FCMP { s1, s32 } floatpred(uno), %2, %3
...