Fix up the patterns for SXTB, SXTH, UXTB, and UXTH so that they are correctly active without HasT2ExtractPack. PR10611.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137061 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 29 insertions, 0 deletions

diff --git a/test/CodeGen/Thumb2/thumb2-sxt-uxt.ll b/test/CodeGen/Thumb2/thumb2-sxt-uxt.ll
new file mode 100644
index 0000000000..ab888e694c
--- /dev/null
+++ b/test/CodeGen/Thumb2/thumb2-sxt-uxt.ll
@@ -0,0 +1,29 @@
+; RUN: llc < %s -march=thumb -mcpu=cortex-m3 | FileCheck %s
+
+define i32 @test1(i16 zeroext %z) nounwind {
+; CHECK: test1:
+; CHECK: sxth
+  %r = sext i16 %z to i32
+  ret i32 %r
+}
+
+define i32 @test2(i8 zeroext %z) nounwind {
+; CHECK: test2:
+; CHECK: sxtb
+  %r = sext i8 %z to i32
+  ret i32 %r
+}
+
+define i32 @test3(i16 signext %z) nounwind {
+; CHECK: test3:
+; CHECK: uxth
+  %r = zext i16 %z to i32
+  ret i32 %r
+}
+
+define i32 @test4(i8 signext %z) nounwind {
+; CHECK: test4:
+; CHECK: uxtb
+  %r = zext i8 %z to i32
+  ret i32 %r
+}