31 lines
909 B
LLVM
31 lines
909 B
LLVM
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; RUN: llc -O0 -mtriple=aarch64-apple-ios -global-isel -stop-after=irtranslator %s -o - | FileCheck %s
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; Test that extends correctly translate to G_[ZS]EXT. The translator will never
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; emit a G_SEXT_INREG.
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define i32 @test_zext(i32 %a) {
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; CHECK-LABEL: name: test_zext
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; CHECK: %0:_(s32) = COPY $w0
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; CHECK: %1:_(s8) = G_TRUNC %0(s32)
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; CHECK: %2:_(s16) = G_ZEXT %1(s8)
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; CHECK: %3:_(s32) = G_ZEXT %2(s16)
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; CHECK: $w0 = COPY %3(s32)
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%tmp0 = trunc i32 %a to i8
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%tmp1 = zext i8 %tmp0 to i16
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%tmp2 = zext i16 %tmp1 to i32
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ret i32 %tmp2
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}
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define i32 @test_sext(i32 %a) {
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; CHECK-LABEL: name: test_sext
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; CHECK: %0:_(s32) = COPY $w0
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; CHECK: %1:_(s8) = G_TRUNC %0(s32)
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; CHECK: %2:_(s16) = G_SEXT %1(s8)
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; CHECK: %3:_(s32) = G_SEXT %2(s16)
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; CHECK: $w0 = COPY %3(s32)
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%tmp0 = trunc i32 %a to i8
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%tmp1 = sext i8 %tmp0 to i16
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%tmp2 = sext i16 %tmp1 to i32
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ret i32 %tmp2
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}
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