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GlobalISel: mark G_FPEXT legal from float to double.

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llvm-svn: 279845
This commit is contained in:
Tim Northover 2016-08-26 17:46:22 +00:00
parent 2f9c75fe2f
commit 4f35a13881
2 changed files with 9 additions and 0 deletions
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3
lib/Target/AArch64/AArch64MachineLegalizer.cpp
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@ -114,6 +114,9 @@ AArch64MachineLegalizer::AArch64MachineLegalizer() {
setAction({G_ANYEXT, 1, Ty}, Legal);
}
setAction({G_FPEXT, s64}, Legal);
setAction({G_FPEXT, 1, s32}, Legal);
// Truncations
for (auto Ty : { s16, s32 })
setAction({G_FPTRUNC, Ty}, Legal);

6
test/CodeGen/AArch64/GlobalISel/legalize-ext.mir
View File

@ -29,6 +29,8 @@ registers:
- { id: 14, class: _ }
- { id: 15, class: _ }
- { id: 16, class: _ }
- { id: 17, class: _ }
- { id: 18, class: _ }
body: |
bb.0.entry:
liveins: %x0, %x1, %x2, %x3
@ -70,4 +72,8 @@ body: |
; CHECK: %16(16) = G_ANYEXT { s16, s8 } %2
%15(8) = G_ZEXT { s8, s1 } %1
%16(16) = G_ANYEXT { s16, s8 } %2
; CHECK: %18(64) = G_FPEXT { s64, s32 } %17
%17(32) = G_TRUNC { s32, s64 } %0
%18(64) = G_FPEXT { s64, s32 } %17
...