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| author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-01-07 19:29:18 +0000 |
|---|---|---|
| committer | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-01-07 19:29:18 +0000 |
| commit | 5b7f9216c357f1cdf507f300f396b44cb982eb3f (patch) | |
| tree | 0ec0da8431762da98a57a1a6a7dc944053f46836 /test/CodeGen/PowerPC/mcm-9.ll | |
| parent | 3ebe59c892051375623fea55e977ff559fdb3323 (diff) | |
| download | llvm-5b7f9216c357f1cdf507f300f396b44cb982eb3f.tar.gz llvm-5b7f9216c357f1cdf507f300f396b44cb982eb3f.tar.bz2 llvm-5b7f9216c357f1cdf507f300f396b44cb982eb3f.tar.xz | |
This patch addresses bug 14678 by fixing two problems in medium code model
code generation. Variables addressed through a GlobalAlias were not being
handled, and variables with available_externally linkage were treated
incorrectly. The patch contains two new tests to verify the correct code
generation for these cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171778 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/PowerPC/mcm-9.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/mcm-9.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/mcm-9.ll b/test/CodeGen/PowerPC/mcm-9.ll new file mode 100644 index 0000000000..422607c5bc --- /dev/null +++ b/test/CodeGen/PowerPC/mcm-9.ll @@ -0,0 +1,27 @@ +; RUN: llc -mcpu=pwr7 -O0 -code-model=medium <%s | FileCheck %s + +; Test correct code generation for medium code model (32-bit TOC offsets) +; for loading and storing an aliased external variable. + +target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64" +target triple = "powerpc64-unknown-linux-gnu" + +@ei = external global i32 +@a = alias i32* @ei + +define signext i32 @test_external() nounwind { +entry: + %0 = load i32* @a, align 4 + %inc = add nsw i32 %0, 1 + store i32 %inc, i32* @a, align 4 + ret i32 %0 +} + +; CHECK: test_external: +; CHECK: addis [[REG1:[0-9]+]], 2, .LC[[TOCNUM:[0-9]+]]@toc@ha +; CHECK: ld [[REG2:[0-9]+]], .LC[[TOCNUM]]@toc@l([[REG1]]) +; CHECK: lwz {{[0-9]+}}, 0([[REG2]]) +; CHECK: stw {{[0-9]+}}, 0([[REG2]]) +; CHECK: .section .toc +; CHECK: .LC[[TOCNUM]]: +; CHECK: .tc {{[a-z0-9A-Z_.]+}}[TC],{{[a-z0-9A-Z_.]+}} |