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26 lines
929 B
LLVM
26 lines
929 B
LLVM
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; RUN: llc -verify-machineinstrs -mcpu=pwr7 -O1 -code-model=medium <%s | FileCheck %s
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; Test peephole optimization for medium code model (32-bit TOC offsets)
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; for loading and storing a static variable scoped to a function.
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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"
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target triple = "powerpc64-unknown-linux-gnu"
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@test_fn_static.si = internal global i32 0, align 4
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define signext i32 @test_fn_static() nounwind {
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entry:
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%0 = load i32, i32* @test_fn_static.si, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* @test_fn_static.si, align 4
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ret i32 %0
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}
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; CHECK-LABEL: test_fn_static:
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; CHECK: addis [[REG1:[0-9]+]], 2, [[VAR:[a-z0-9A-Z_.]+]]@toc@ha
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; CHECK: lwa {{[0-9]+}}, [[VAR]]@toc@l([[REG1]])
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; CHECK-NOT: extsw
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; CHECK: stw {{[0-9]+}}, [[VAR]]@toc@l([[REG1]])
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; CHECK: .type [[VAR]],@object
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; CHECK: .lcomm [[VAR]],4,4
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