Add the testcase from PR 4668. This works at the

moment, but it's a fragile area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78358 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2009-08-06-inlineasm.ll b/test/CodeGen/X86/2009-08-06-inlineasm.ll
new file mode 100644 (file)
index 0000000..b1c2b28
--- /dev/null
+++ b/test/CodeGen/X86/2009-08-06-inlineasm.ll
@@ -0,0 +1,26 @@
+; RUN: llvm-as < %s | llc
+; PR4668
+; ModuleID = '<stdin>'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
+target triple = "i386-pc-linux-gnu"
+
+define i32 @x(i32 %qscale) nounwind {
+entry:
+       %temp_block = alloca [64 x i16], align 16               ; <[64 x i16]*> [#uses=0]
+       %tmp = call i32 asm sideeffect "xor %edx, %edx", "={dx},~{dirflag},~{fpsr},~{flags}"() nounwind         ; <i32> [#uses=1]
+       br i1 undef, label %if.end78, label %if.then28
+
+if.then28:             ; preds = %entry
+       br label %if.end78
+
+if.end78:              ; preds = %if.then28, %entry
+       %level.1 = phi i32 [ %tmp, %if.then28 ], [ 0, %entry ]          ; <i32> [#uses=1]
+       %add.ptr1 = getelementptr [64 x i16]* null, i32 0, i32 %qscale          ; <i16*> [#uses=1]
+       %add.ptr2 = getelementptr [64 x i16]* null, i32 1, i32 %qscale          ; <i16*> [#uses=1]
+       %add.ptr3 = getelementptr [64 x i16]* null, i32 2, i32 %qscale          ; <i16*> [#uses=1]
+       %add.ptr4 = getelementptr [64 x i16]* null, i32 3, i32 %qscale          ; <i16*> [#uses=1]
+       %add.ptr5 = getelementptr [64 x i16]* null, i32 4, i32 %qscale          ; <i16*> [#uses=1]
+       %add.ptr6 = getelementptr [64 x i16]* null, i32 5, i32 %qscale          ; <i16*> [#uses=1]
+       %tmp1 = call i32 asm sideeffect "nop", "={ax},r,r,r,r,r,0,~{dirflag},~{fpsr},~{flags}"(i16* %add.ptr6, i16* %add.ptr5, i16* %add.ptr4, i16* %add.ptr3, i16* %add.ptr2, i16* %add.ptr1) nounwind         ; <i32> [#uses=0]
+       ret i32 %level.1
+}