31 lines · plain
1; RUN: llc -O0 -mtriple=aarch64-apple-ios -global-isel -stop-after=irtranslator %s -o - | FileCheck %s2 3; Test that extends correctly translate to G_[ZS]EXT. The translator will never4; emit a G_SEXT_INREG.5 6define i32 @test_zext(i32 %a) {7 ; CHECK-LABEL: name: test_zext8 ; CHECK: %0:_(s32) = COPY $w09 ; CHECK: %1:_(s8) = G_TRUNC %0(s32)10 ; CHECK: %2:_(s16) = G_ZEXT %1(s8)11 ; CHECK: %3:_(s32) = G_ZEXT %2(s16)12 ; CHECK: $w0 = COPY %3(s32)13 %tmp0 = trunc i32 %a to i814 %tmp1 = zext i8 %tmp0 to i1615 %tmp2 = zext i16 %tmp1 to i3216 ret i32 %tmp217}18 19define i32 @test_sext(i32 %a) {20 ; CHECK-LABEL: name: test_sext21 ; CHECK: %0:_(s32) = COPY $w022 ; CHECK: %1:_(s8) = G_TRUNC %0(s32)23 ; CHECK: %2:_(s16) = G_SEXT %1(s8)24 ; CHECK: %3:_(s32) = G_SEXT %2(s16)25 ; CHECK: $w0 = COPY %3(s32)26 %tmp0 = trunc i32 %a to i827 %tmp1 = sext i8 %tmp0 to i1628 %tmp2 = sext i16 %tmp1 to i3229 ret i32 %tmp230}31