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llvm-mirror/test/CodeGen/PowerPC/mcm-9.ll

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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. llvm-svn: 171778
2013-01-07 20:29:18 +01:00
; RUN: llc -mcpu=pwr7 -O0 -code-model=medium <%s | FileCheck %s
Large code model support for PowerPC. Large code model is identical to medium code model except that the addis/addi sequence for "local" accesses is never used. All accesses use the addis/ld sequence. The coding changes are straightforward; most of the patch is taken up with creating variants of the medium model tests for large model. llvm-svn: 175767
2013-02-21 18:12:27 +01:00
; RUN: llc -mcpu=pwr7 -O0 -code-model=large <%s | FileCheck %s
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. llvm-svn: 171778
2013-01-07 20:29:18 +01:00
Large code model support for PowerPC. Large code model is identical to medium code model except that the addis/addi sequence for "local" accesses is never used. All accesses use the addis/ld sequence. The coding changes are straightforward; most of the patch is taken up with creating variants of the medium model tests for large model. llvm-svn: 175767
2013-02-21 18:12:27 +01:00
; Test correct code generation for medium and large code model
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. llvm-svn: 171778
2013-01-07 20:29:18 +01:00
; 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
}
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-13 22:38:47 +02:00
; CHECK-LABEL: test_external:
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. llvm-svn: 171778
2013-01-07 20:29:18 +01:00
; 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_.]+}}
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