From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sun, 13 Aug 2017 20:35:38 +0000 (+0000)
Subject: [X86][BMI] Add BEXTR demanded bits test cases (PR34042)
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=13a58815239cfab76c77444db174c1209f0ad075;p=llvm

[X86][BMI] Add BEXTR demanded bits test cases (PR34042)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310802 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/CodeGen/X86/bmi.ll b/test/CodeGen/X86/bmi.ll
index 50e9ab5f145..f6f72fb0cf5 100644
--- a/test/CodeGen/X86/bmi.ll
+++ b/test/CodeGen/X86/bmi.ll
@@ -323,6 +323,18 @@ define i32 @bextr32b_load(i32* %x)  uwtable  ssp {
   ret i32 %3
 }
 
+; PR34042
+define i32 @bextr32c(i32 %x, i16 zeroext %y) {
+; CHECK-LABEL: bextr32c:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    movswl %si, %eax
+; CHECK-NEXT:    bextrl %eax, %edi, %eax
+; CHECK-NEXT:    retq
+  %tmp0 = sext i16 %y to i32
+  %tmp1 = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x, i32 %tmp0)
+  ret i32 %tmp1
+}
+
 define i64 @bextr64(i64 %x, i64 %y)   {
 ; CHECK-LABEL: bextr64:
 ; CHECK:       # BB#0:
@@ -357,6 +369,18 @@ define i64 @bextr64b_load(i64* %x) {
   ret i64 %3
 }
 
+; PR34042
+define i64 @bextr64c(i64 %x, i32 %y) {
+; CHECK-LABEL: bextr64c:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    movslq %esi, %rax
+; CHECK-NEXT:    bextrq %rax, %rdi, %rax
+; CHECK-NEXT:    retq
+  %tmp0 = sext i32 %y to i64
+  %tmp1 = tail call i64 @llvm.x86.bmi.bextr.64(i64 %x, i64 %tmp0)
+  ret i64 %tmp1
+}
+
 define i32 @non_bextr32(i32 %x) {
 ; CHECK-LABEL: non_bextr32:
 ; CHECK:       # BB#0: # %entry