Add fast-isel support for zeroext and signext ret instructions on x86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131689 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 38 insertions, 0 deletions

diff --git a/test/CodeGen/X86/fast-isel-ret-ext.ll b/test/CodeGen/X86/fast-isel-ret-ext.ll
new file mode 100644
index 0000000000..fd768cb9b3
--- /dev/null
+++ b/test/CodeGen/X86/fast-isel-ret-ext.ll
@@ -0,0 +1,38 @@
+; RUN: llc < %s  -O0 -fast-isel-abort -mtriple i686-apple-darwin10 | FileCheck %s
+; RUN: llc < %s  -O0 -fast-isel-abort -mtriple x86_64-apple-darwin10 | FileCheck %s
+
+define zeroext i8 @test1(i32 %y) nounwind {
+  %conv = trunc i32 %y to i8
+  ret i8 %conv
+  ; CHECK: test1:
+  ; CHECK: movzbl {{.*}}, %eax
+}
+
+define signext i8 @test2(i32 %y) nounwind {
+  %conv = trunc i32 %y to i8
+  ret i8 %conv
+  ; CHECK: test2:
+  ; CHECK: movsbl {{.*}}, %eax
+}
+
+define zeroext i16 @test3(i32 %y) nounwind {
+  %conv = trunc i32 %y to i16
+  ret i16 %conv
+  ; CHECK: test3:
+  ; CHECK: movzwl {{.*}}, %eax
+}
+
+define signext i16 @test4(i32 %y) nounwind {
+  %conv = trunc i32 %y to i16
+  ret i16 %conv
+  ; CHECK: test4:
+  ; CHECK: movswl {{.*}}, %eax
+}
+
+define zeroext i1 @test5(i32 %y) nounwind {
+  %conv = trunc i32 %y to i1
+  ret i1 %conv
+  ; CHECK: test5:
+  ; CHECK: andb $1
+  ; CHECK: movzbl {{.*}}, %eax
+}