diff options
Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-sxt_rot.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/thumb2-sxt_rot.ll | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-sxt_rot.ll b/test/CodeGen/Thumb2/thumb2-sxt_rot.ll index cef3490..02a8c47 100644 --- a/test/CodeGen/Thumb2/thumb2-sxt_rot.ll +++ b/test/CodeGen/Thumb2/thumb2-sxt_rot.ll @@ -2,15 +2,15 @@ ; RUN: | FileCheck %s define i32 @test0(i8 %A) { -; CHECK: test0 +; CHECK-LABEL: test0: ; CHECK: sxtb r0, r0 %B = sext i8 %A to i32 ret i32 %B } define signext i8 @test1(i32 %A) { -; CHECK: test1 -; CHECK: sxtb.w r0, r0, ror #8 +; CHECK-LABEL: test1: +; CHECK: sbfx r0, r0, #8, #8 %B = lshr i32 %A, 8 %C = shl i32 %A, 24 %D = or i32 %B, %C @@ -19,9 +19,8 @@ define signext i8 @test1(i32 %A) { } define signext i32 @test2(i32 %A, i32 %X) { -; CHECK: test2 -; CHECK: lsrs r0, r0, #8 -; CHECK: sxtab r0, r1, r0 +; CHECK-LABEL: test2: +; CHECK: sxtab r0, r1, r0, ror #8 %B = lshr i32 %A, 8 %C = shl i32 %A, 24 %D = or i32 %B, %C @@ -30,3 +29,14 @@ define signext i32 @test2(i32 %A, i32 %X) { %G = add i32 %F, %X ret i32 %G } + +define i32 @test3(i32 %A, i32 %X) { +; CHECK-LABEL: test3: +; CHECK: sxtah r0, r0, r1, ror #8 + %X.hi = lshr i32 %X, 8 + %X.trunc = trunc i32 %X.hi to i16 + %addend = sext i16 %X.trunc to i32 + + %sum = add i32 %A, %addend + ret i32 %sum +} |