testcase for PR1357

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36598 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/PowerPC/2007-04-30-InlineAsmEarlyClobber.ll b/test/CodeGen/PowerPC/2007-04-30-InlineAsmEarlyClobber.ll
new file mode 100644 (file)
index 0000000..f43b87c
--- /dev/null
+++ b/test/CodeGen/PowerPC/2007-04-30-InlineAsmEarlyClobber.ll
@@ -0,0 +1,27 @@
+; RUN: llvm-as < %s | llc | grep {subfc r2,r5,r4}
+; RUN: llvm-as < %s | llc | grep {subfze r4,r3}
+
+; PR1357
+
+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"
+target triple = "powerpc-apple-darwin8.8.0"
+
+;long long test(int A, int B, int C) {
+;  unsigned X, Y;
+;  __asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2"
+;                 : "=r" (X), "=&r" (Y)
+;                 : "r" (A), "rI" (B), "r" (C));
+;  return ((long long)Y << 32) | X;
+;}
+
+define i64 @test(i32 %A, i32 %B, i32 %C) {
+entry:
+       %Y = alloca i32, align 4                ; <i32*> [#uses=2]
+       %tmp4 = call i32 asm "subf${3:I}c $1,$4,$3\0A\09subfze $0,$2", "=r,=*&r,r,rI,r"( i32* %Y, i32 %A, i32 %B, i32 %C )              ; <i32> [#uses=1]
+       %tmp5 = load i32* %Y            ; <i32> [#uses=1]
+       %tmp56 = zext i32 %tmp5 to i64          ; <i64> [#uses=1]
+       %tmp7 = shl i64 %tmp56, 32              ; <i64> [#uses=1]
+       %tmp89 = zext i32 %tmp4 to i64          ; <i64> [#uses=1]
+       %tmp10 = or i64 %tmp7, %tmp89           ; <i64> [#uses=1]
+       ret i64 %tmp10
+}