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36d2ad6539
http://reviews.llvm.org/D18562 A large number of testcases has been modified so they pass after this test. One testcase is deleted, because I realized even after undoing the original change that was committed with this testcase, the testcase still passes. So I removed it. The change to one other testcase (test/CodeGen/PowerPC/pr25802.ll) is an arbitrary change to keep it passing. Given the original intention of the testcase, and the fact that fixing it will require some time to change the testcase, we concluded that this quick change will be enough. llvm-svn: 265683
98 lines
2.8 KiB
LLVM
98 lines
2.8 KiB
LLVM
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-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-freebsd10.0"
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; RUN: llc < %s -march=ppc64 -relocation-model=pic | FileCheck %s
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@a = common global i32 0, align 4
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define void @test1(i32 %c) nounwind {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%0 = load volatile i32, i32* @a, align 4
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%add = add nsw i32 %0, %c
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store volatile i32 %add, i32* @a, align 4
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%inc = add nsw i32 %i.01, 1
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%exitcond = icmp eq i32 %inc, 2048
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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; CHECK: @test1
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; CHECK-NOT: or 3, 3, 3
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; CHECK: mtctr
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; CHECK-NOT: addi {[0-9]+}
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; CHECK-NOT: cmplwi
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; CHECK: bdnz
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}
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define void @test2(i32 %c, i32 %d) nounwind {
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entry:
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%cmp1 = icmp sgt i32 %d, 0
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br i1 %cmp1, label %for.body, label %for.end
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
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%0 = load volatile i32, i32* @a, align 4
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%add = add nsw i32 %0, %c
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store volatile i32 %add, i32* @a, align 4
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%inc = add nsw i32 %i.02, 1
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%exitcond = icmp eq i32 %inc, %d
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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ret void
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; CHECK: @test2
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; CHECK: mtctr
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; CHECK-NOT: addi {[0-9]+}
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; CHECK-NOT: cmplwi
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; CHECK: bdnz
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}
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define void @test3(i32 %c, i32 %d) nounwind {
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entry:
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%cmp1 = icmp sgt i32 %d, 0
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br i1 %cmp1, label %for.body, label %for.end
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
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%mul = mul nsw i32 %i.02, %c
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%0 = load volatile i32, i32* @a, align 4
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%add = add nsw i32 %0, %mul
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store volatile i32 %add, i32* @a, align 4
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%inc = add nsw i32 %i.02, 1
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%exitcond = icmp eq i32 %inc, %d
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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ret void
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; CHECK: @test3
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; CHECK: mtctr
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; CHECK-NOT: addi {[0-9]+}
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; CHECK-NOT: cmplwi
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; CHECK: bdnz
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}
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@tls_var = external thread_local global i8
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define i32 @test4(i32 %inp) {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%phi = phi i32 [ %dec, %for.body ], [ %inp, %entry ]
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%load = ptrtoint i8* @tls_var to i32
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%val = add i32 %load, %phi
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%dec = add i32 %phi, -1
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%cmp = icmp sgt i32 %phi, 1
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br i1 %cmp, label %for.body, label %return
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return: ; preds = %for.body
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ret i32 %val
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; CHECK-LABEL: @test4
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; CHECK: mtctr
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; CHECK: bdnz
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; CHECK: __tls_get_addr
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}
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