0d66010454
The toxic stew of created values named 'tmp' and tests that already have values named 'tmp' and CHECK lines looking for values named 'tmp' causes bad things to happen in our test line auto-generation scripts because it wants to use 'TMP' as a prefix for unnamed values. Use less 'tmp' to avoid that. llvm-svn: 317818
36 lines
1.0 KiB
LLVM
36 lines
1.0 KiB
LLVM
; RUN: opt < %s -reassociate -S | FileCheck %s
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; Check that a*a*b+a*a*c is turned into a*(a*(b+c)).
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define i64 @multistep1(i64 %a, i64 %b, i64 %c) {
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; CHECK-LABEL: @multistep1(
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; CHECK-NEXT: [[REASS_ADD1:%.*]] = add i64 %c, %b
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; CHECK-NEXT: [[REASS_MUL2:%.*]] = mul i64 %a, %a
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; CHECK-NEXT: [[REASS_MUL:%.*]] = mul i64 [[REASS_MUL:%.*]]2, [[REASS_ADD1]]
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; CHECK-NEXT: ret i64 [[REASS_MUL]]
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;
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%t0 = mul i64 %a, %b
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%t1 = mul i64 %a, %t0 ; a*(a*b)
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%t2 = mul i64 %a, %c
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%t3 = mul i64 %a, %t2 ; a*(a*c)
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%t4 = add i64 %t1, %t3
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ret i64 %t4
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}
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; Check that a*b+a*c+d is turned into a*(b+c)+d.
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define i64 @multistep2(i64 %a, i64 %b, i64 %c, i64 %d) {
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; CHECK-LABEL: @multistep2(
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; CHECK-NEXT: [[REASS_ADD:%.*]] = add i64 %c, %b
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; CHECK-NEXT: [[REASS_MUL:%.*]] = mul i64 [[REASS_ADD]], %a
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; CHECK-NEXT: [[T3:%.*]] = add i64 [[REASS_MUL]], %d
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; CHECK-NEXT: ret i64 [[T3]]
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;
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%t0 = mul i64 %a, %b
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%t1 = mul i64 %a, %c
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%t2 = add i64 %t1, %d ; a*c+d
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%t3 = add i64 %t0, %t2 ; a*b+(a*c+d)
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ret i64 %t3
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}
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