Fix a catastrophic PPC64 ABI bug: i32 operands which are passed in memory (all of...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53979 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 2ea48cf89dbf246e8a4effea2f1f2ffba50b83b7..6bf147a6ad9f75527885a5fb981a8cf59a5c1e82 100644 (file)
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -1582,6 +1582,7 @@ PPCTargetLowering::LowerFORMAL_ARGUMENTS(SDOperand Op,
         ++GPR_idx;
       } else {
         needsLoad = true;
+        ArgSize = PtrByteSize;
       }
       // All int arguments reserve stack space in Macho ABI.
       if (isMachoABI || needsLoad) ArgOffset += 8;

diff --git a/test/CodeGen/PowerPC/2008-07-24-PPC64-CCBug.ll b/test/CodeGen/PowerPC/2008-07-24-PPC64-CCBug.ll
new file mode 100644 (file)
index 0000000..2ccca25
--- /dev/null
+++ b/test/CodeGen/PowerPC/2008-07-24-PPC64-CCBug.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -mtriple=powerpc64-apple-darwin | grep lwz | grep 228
+
+@"\01LC" = internal constant [4 x i8] c"%d\0A\00"              ; <[4 x i8]*> [#uses=1]
+
+define void @llvm_static_func(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7, i32 %a8, i32 %a9, i32 %a10, i32 %a11, i32 %a12, i32 %a13, i32 %a14, i32 %a15) nounwind  {
+entry:
+       tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i64 0), i32 %a8 ) nounwind             ; <i32>:0 [#uses=0]
+       ret void
+}
+
+declare i32 @printf(i8*, ...) nounwind