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| author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2012-11-27 23:36:26 +0000 |
|---|---|---|
| committer | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2012-11-27 23:36:26 +0000 |
| commit | e0a68a562bf1ad84e7fe15db6f7f3bead3812512 (patch) | |
| tree | b4141a1eb3ba8afcbead05ea3a73144a064d0e1b | |
| parent | 948d4aba5d65e3d7acdaced55d1dc22ee8e81968 (diff) | |
| download | bcm5719-llvm-e0a68a562bf1ad84e7fe15db6f7f3bead3812512.tar.gz bcm5719-llvm-e0a68a562bf1ad84e7fe15db6f7f3bead3812512.zip | |
This patch makes medium code model the default for 64-bit PowerPC ELF.
When the CodeGenInfo is to be created for the PPC64 target machine,
a default code-model selection is converted to CodeModel::Medium
provided we are not targeting the Darwin OS. Defaults for Darwin
are unaffected.
llvm-svn: 168747
| -rw-r--r-- | llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp | 5 | ||||
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/mcm-default.ll | 26 |
2 files changed, 31 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp index 6568e82e2bf..29faca34000 100644 --- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp +++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp @@ -88,6 +88,11 @@ static MCCodeGenInfo *createPPCMCCodeGenInfo(StringRef TT, Reloc::Model RM, else RM = Reloc::Static; } + if (CM == CodeModel::Default) { + Triple T(TT); + if (!T.isOSDarwin() && T.getArch() == Triple::ppc64) + CM = CodeModel::Medium; + } X->InitMCCodeGenInfo(RM, CM, OL); return X; } diff --git a/llvm/test/CodeGen/PowerPC/mcm-default.ll b/llvm/test/CodeGen/PowerPC/mcm-default.ll new file mode 100644 index 00000000000..19de2536aec --- /dev/null +++ b/llvm/test/CodeGen/PowerPC/mcm-default.ll @@ -0,0 +1,26 @@ +; RUN: llc -mcpu=pwr7 -O0 <%s | FileCheck %s + +; Test that we generate code for the medium model as the default. +; Use an external variable reference as an example. + +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 + +define signext i32 @test_external() nounwind { +entry: + %0 = load i32* @ei, align 4 + %inc = add nsw i32 %0, 1 + store i32 %inc, i32* @ei, 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_.]+}} |
