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author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-02-20 17:31:41 +0000 |
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committer | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-02-20 17:31:41 +0000 |
commit | 49deebb5ebcde502fa7908362a5c000e7adbb359 (patch) | |
tree | 579c65eab7d92f42dfac6abc8cd3e1266f6e9bdc /test | |
parent | d6c98ae63824854ea2175b362a10985cac7cfb32 (diff) | |
download | external_llvm-49deebb5ebcde502fa7908362a5c000e7adbb359.zip external_llvm-49deebb5ebcde502fa7908362a5c000e7adbb359.tar.gz external_llvm-49deebb5ebcde502fa7908362a5c000e7adbb359.tar.bz2 |
Fix bug 14779 for passing anonymous aggregates [patch by Kai Nacke].
The PPC backend doesn't handle these correctly. This patch uses logic
similar to that in the X86 and ARM backends to track these arguments
properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175635 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/CodeGen/PowerPC/anon_aggr.ll | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/anon_aggr.ll b/test/CodeGen/PowerPC/anon_aggr.ll new file mode 100644 index 0000000..52587e2 --- /dev/null +++ b/test/CodeGen/PowerPC/anon_aggr.ll @@ -0,0 +1,99 @@ +; RUN: llc -O0 -mcpu=pwr7 -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s + +; Test case for PR 14779: anonymous aggregates are not handled correctly. +; The bug is triggered by passing a byval structure after an anonymous +; aggregate. + +%tarray = type { i64, i8* } + +define i8* @func1({ i64, i8* } %array, i8* %ptr) { +entry: + %array_ptr = extractvalue {i64, i8* } %array, 1 + %cond = icmp eq i8* %array_ptr, %ptr + br i1 %cond, label %equal, label %unequal +equal: + ret i8* %array_ptr +unequal: + ret i8* %ptr +} + +; CHECK: func1: +; CHECK: cmpld {{[0-9]+}}, 4, 5 +; CHECK: std 4, -[[OFFSET1:[0-9]+]] +; CHECK: std 5, -[[OFFSET2:[0-9]+]] +; CHECK: ld 3, -[[OFFSET1]](1) +; CHECK: ld 3, -[[OFFSET2]](1) + + +define i8* @func2({ i64, i8* } %array1, %tarray* byval %array2) { +entry: + %array1_ptr = extractvalue {i64, i8* } %array1, 1 + %tmp = getelementptr inbounds %tarray* %array2, i32 0, i32 1 + %array2_ptr = load i8** %tmp + %cond = icmp eq i8* %array1_ptr, %array2_ptr + br i1 %cond, label %equal, label %unequal +equal: + ret i8* %array1_ptr +unequal: + ret i8* %array2_ptr +} + +; CHECK: func2: +; CHECK: addi [[REG1:[0-9]+]], 1, 64 +; CHECK: ld [[REG2:[0-9]+]], 8([[REG1]]) +; CHECK: cmpld {{[0-9]+}}, 4, [[REG2]] +; CHECK: std [[REG2]], -[[OFFSET1:[0-9]+]] +; CHECK: std 4, -[[OFFSET2:[0-9]+]] +; CHECK: ld 3, -[[OFFSET2]](1) +; CHECK: ld 3, -[[OFFSET1]](1) + +define i8* @func3({ i64, i8* }* byval %array1, %tarray* byval %array2) { +entry: + %tmp1 = getelementptr inbounds { i64, i8* }* %array1, i32 0, i32 1 + %array1_ptr = load i8** %tmp1 + %tmp2 = getelementptr inbounds %tarray* %array2, i32 0, i32 1 + %array2_ptr = load i8** %tmp2 + %cond = icmp eq i8* %array1_ptr, %array2_ptr + br i1 %cond, label %equal, label %unequal +equal: + ret i8* %array1_ptr +unequal: + ret i8* %array2_ptr +} + +; CHECK: func3: +; CHECK: addi [[REG1:[0-9]+]], 1, 64 +; CHECK: addi [[REG2:[0-9]+]], 1, 48 +; CHECK: ld [[REG3:[0-9]+]], 8([[REG1]]) +; CHECK: ld [[REG4:[0-9]+]], 8([[REG2]]) +; CHECK: cmpld {{[0-9]+}}, [[REG4]], [[REG3]] +; CHECK: std [[REG3]], -[[OFFSET1:[0-9]+]](1) +; CHECK: std [[REG4]], -[[OFFSET2:[0-9]+]](1) +; CHECK: ld 3, -[[OFFSET2]](1) +; CHECK: ld 3, -[[OFFSET1]](1) + +define i8* @func4(i64 %p1, i64 %p2, i64 %p3, i64 %p4, + i64 %p5, i64 %p6, i64 %p7, i64 %p8, + { i64, i8* } %array1, %tarray* byval %array2) { +entry: + %array1_ptr = extractvalue {i64, i8* } %array1, 1 + %tmp = getelementptr inbounds %tarray* %array2, i32 0, i32 1 + %array2_ptr = load i8** %tmp + %cond = icmp eq i8* %array1_ptr, %array2_ptr + br i1 %cond, label %equal, label %unequal +equal: + ret i8* %array1_ptr +unequal: + ret i8* %array2_ptr +} + +; CHECK: func4: +; CHECK: addi [[REG1:[0-9]+]], 1, 128 +; CHECK: ld [[REG2:[0-9]+]], 120(1) +; CHECK: ld [[REG3:[0-9]+]], 8([[REG1]]) +; CHECK: cmpld {{[0-9]+}}, [[REG2]], [[REG3]] +; CHECK: std [[REG2]], -[[OFFSET1:[0-9]+]](1) +; CHECK: std [[REG3]], -[[OFFSET2:[0-9]+]](1) +; CHECK: ld 3, -[[OFFSET1]](1) +; CHECK: ld 3, -[[OFFSET2]](1) + |