aa2009fe78
First step after e113317958,
in these tests, DomTree is valid afterwards, so mark them as such,
so that they don't regress.
In further steps, SimplifyCFG transforms shall taught to preserve DomTree,
in as small steps as possible.
104 lines
4.7 KiB
LLVM
104 lines
4.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -mtriple=powerpc64le-unknown-linux-gnu -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -hoist-common-insts=true -enable-unsafe-fp-math -S | \
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; RUN: FileCheck %s
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; This case is copied from test/Transforms/SimplifyCFG/AArch64/
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; Function Attrs: nounwind
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define double @_Z3fooRdS_S_S_(double* dereferenceable(8) %x, double* dereferenceable(8) %y, double* dereferenceable(8) %a) {
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; CHECK-LABEL: @_Z3fooRdS_S_S_(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = load double, double* [[Y:%.*]], align 8
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; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[TMP0]], 0.000000e+00
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; CHECK-NEXT: [[TMP1:%.*]] = load double, double* [[X:%.*]], align 8
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; CHECK-NEXT: [[TMP2:%.*]] = load double, double* [[A:%.*]], align 8
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; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: [[TMP3:%.*]] = fmul fast double [[TMP1]], [[TMP2]]
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; CHECK-NEXT: [[MUL:%.*]] = fadd fast double 1.000000e+00, [[TMP3]]
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; CHECK-NEXT: store double [[MUL]], double* [[Y]], align 8
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; CHECK-NEXT: br label [[IF_END:%.*]]
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; CHECK: if.else:
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; CHECK-NEXT: [[MUL1:%.*]] = fmul fast double [[TMP1]], [[TMP2]]
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; CHECK-NEXT: [[SUB1:%.*]] = fsub fast double [[MUL1]], [[TMP0]]
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; CHECK-NEXT: [[GEP1:%.*]] = getelementptr double, double* [[Y]], i32 1
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; CHECK-NEXT: store double [[SUB1]], double* [[GEP1]], align 8
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; CHECK-NEXT: br label [[IF_END]]
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; CHECK: if.end:
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; CHECK-NEXT: [[TMP4:%.*]] = load double, double* [[Y]], align 8
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; CHECK-NEXT: [[CMP2:%.*]] = fcmp oeq double [[TMP4]], 2.000000e+00
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; CHECK-NEXT: [[TMP5:%.*]] = load double, double* [[X]], align 8
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; CHECK-NEXT: br i1 [[CMP2]], label [[IF_THEN2:%.*]], label [[IF_ELSE2:%.*]]
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; CHECK: if.then2:
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; CHECK-NEXT: [[TMP6:%.*]] = load double, double* [[A]], align 8
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; CHECK-NEXT: [[TMP7:%.*]] = fmul fast double [[TMP5]], 3.000000e+00
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; CHECK-NEXT: [[MUL2:%.*]] = fsub fast double [[TMP6]], [[TMP7]]
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; CHECK-NEXT: store double [[MUL2]], double* [[Y]], align 8
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; CHECK-NEXT: br label [[IF_END2:%.*]]
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; CHECK: if.else2:
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; CHECK-NEXT: [[MUL3:%.*]] = fmul fast double [[TMP5]], 3.000000e+00
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; CHECK-NEXT: [[NEG:%.*]] = fsub fast double 0.000000e+00, [[MUL3]]
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; CHECK-NEXT: [[SUB2:%.*]] = fsub fast double [[NEG]], 3.000000e+00
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; CHECK-NEXT: store double [[SUB2]], double* [[Y]], align 8
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; CHECK-NEXT: br label [[IF_END2]]
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; CHECK: if.end2:
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; CHECK-NEXT: [[TMP8:%.*]] = load double, double* [[X]], align 8
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; CHECK-NEXT: [[TMP9:%.*]] = load double, double* [[Y]], align 8
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; CHECK-NEXT: [[ADD:%.*]] = fadd fast double [[TMP8]], [[TMP9]]
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; CHECK-NEXT: [[TMP10:%.*]] = load double, double* [[A]], align 8
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; CHECK-NEXT: [[ADD2:%.*]] = fadd fast double [[ADD]], [[TMP10]]
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; CHECK-NEXT: ret double [[ADD2]]
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;
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entry:
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%0 = load double, double* %y, align 8
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%cmp = fcmp oeq double %0, 0.000000e+00
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%1 = load double, double* %x, align 8
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br i1 %cmp, label %if.then, label %if.else
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; fadd (const, (fmul x, y))
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if.then: ; preds = %entry
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%2 = load double, double* %a, align 8
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%3 = fmul fast double %1, %2
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%mul = fadd fast double 1.000000e+00, %3
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store double %mul, double* %y, align 8
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br label %if.end
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; fsub ((fmul x, y), z)
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if.else: ; preds = %entry
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%4 = load double, double* %a, align 8
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%mul1 = fmul fast double %1, %4
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%sub1 = fsub fast double %mul1, %0
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%gep1 = getelementptr double, double* %y, i32 1
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store double %sub1, double* %gep1, align 8
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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%5 = load double, double* %y, align 8
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%cmp2 = fcmp oeq double %5, 2.000000e+00
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%6 = load double, double* %x, align 8
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br i1 %cmp2, label %if.then2, label %if.else2
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; fsub (x, (fmul y, z))
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if.then2: ; preds = %entry
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%7 = load double, double* %a, align 8
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%8 = fmul fast double %6, 3.0000000e+00
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%mul2 = fsub fast double %7, %8
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store double %mul2, double* %y, align 8
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br label %if.end2
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; fsub (fneg((fmul x, y)), const)
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if.else2: ; preds = %entry
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%mul3 = fmul fast double %6, 3.0000000e+00
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%neg = fsub fast double 0.0000000e+00, %mul3
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%sub2 = fsub fast double %neg, 3.0000000e+00
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store double %sub2, double* %y, align 8
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br label %if.end2
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if.end2: ; preds = %if.else, %if.then
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%9 = load double, double* %x, align 8
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%10 = load double, double* %y, align 8
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%add = fadd fast double %9, %10
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%11 = load double, double* %a, align 8
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%add2 = fadd fast double %add, %11
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ret double %add2
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}
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