; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt < %s -passes=aggressive-instcombine -S | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
define double @CompareDistmats(double noundef %distmat1_, double noundef %distmat2_) {
; CHECK-LABEL: define double @CompareDistmats(
; CHECK-SAME: double noundef [[DISTMAT1_:%.*]], double noundef [[DISTMAT2_:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[FOR_COND:.*]]
; CHECK:       [[FOR_COND]]:
; CHECK-NEXT:    [[RMSD_0:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[FMACALL:%.*]], %[[FOR_BODY:.*]] ]
; CHECK-NEXT:    [[CMP:%.*]] = phi i1 [ true, %[[ENTRY]] ], [ false, %[[FOR_BODY]] ]
; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_BODY]], label %[[FOR_COND_CLEANUP:.*]]
; CHECK:       [[FOR_COND_CLEANUP]]:
; CHECK-NEXT:    [[SQRT:%.*]] = call double @llvm.sqrt.f64(double [[RMSD_0]])
; CHECK-NEXT:    ret double [[SQRT]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[SUB:%.*]] = fsub double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[FMACALL]] = call double @llvm.fmuladd.f64(double noundef [[SUB]], double noundef [[SUB]], double [[RMSD_0]])
; CHECK-NEXT:    br label %[[FOR_COND]]
;
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %RMSD.0 = phi double [ 0.000000e+00, %entry ], [ %fmacall, %for.body ]
  %cmp = phi i1 [ true, %entry ], [ false, %for.body ]
  br i1 %cmp, label %for.body, label %for.cond.cleanup

for.cond.cleanup:                                 ; preds = %for.cond
  %call = call double @sqrt(double noundef %RMSD.0)
  ret double %call

for.body:                                         ; preds = %for.cond
  %sub = fsub double %distmat1_, %distmat2_
  %fmacall = call double @llvm.fmuladd.f64(double noundef %sub, double noundef %sub, double %RMSD.0)
  br label %for.cond
}

define double @shuffledCompareDistmats(double noundef %distmat1_, double noundef %distmat2_) {
; CHECK-LABEL: define double @shuffledCompareDistmats(
; CHECK-SAME: double noundef [[DISTMAT1_:%.*]], double noundef [[DISTMAT2_:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[FOR_COND:.*]]
; CHECK:       [[FOR_COND]]:
; CHECK-NEXT:    [[RMSD_0:%.*]] = phi double [ [[FMACALL:%.*]], %[[FOR_BODY:.*]] ], [ 0.000000e+00, %[[ENTRY]] ]
; CHECK-NEXT:    [[CMP:%.*]] = phi i1 [ true, %[[ENTRY]] ], [ false, %[[FOR_BODY]] ]
; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_BODY]], label %[[FOR_COND_CLEANUP:.*]]
; CHECK:       [[FOR_COND_CLEANUP]]:
; CHECK-NEXT:    [[CALL:%.*]] = call double @llvm.sqrt.f64(double [[RMSD_0]])
; CHECK-NEXT:    ret double [[CALL]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[SUB:%.*]] = fsub double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[FMACALL]] = call double @llvm.fmuladd.f64(double noundef [[SUB]], double noundef [[SUB]], double [[RMSD_0]])
; CHECK-NEXT:    br label %[[FOR_COND]]
;
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %RMSD.0 = phi double [ %fmacall, %for.body ], [ 0.000000e+00, %entry ]
  %cmp = phi i1 [ true, %entry ], [ false, %for.body ]
  br i1 %cmp, label %for.body, label %for.cond.cleanup

for.cond.cleanup:                                 ; preds = %for.cond
  %call = call double @sqrt(double noundef %RMSD.0)
  ret double %call

for.body:                                         ; preds = %for.cond
  %sub = fsub double %distmat1_, %distmat2_
  %fmacall = call double @llvm.fmuladd.f64(double noundef %sub, double noundef %sub, double %RMSD.0)
  br label %for.cond
}

define double @fmaCompareDistmats(double noundef %distmat1_, double noundef %distmat2_) {
; CHECK-LABEL: define double @fmaCompareDistmats(
; CHECK-SAME: double noundef [[DISTMAT1_:%.*]], double noundef [[DISTMAT2_:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[FOR_COND:.*]]
; CHECK:       [[FOR_COND]]:
; CHECK-NEXT:    [[RMSD_0:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[FMACALL:%.*]], %[[FOR_BODY:.*]] ]
; CHECK-NEXT:    [[CMP:%.*]] = phi i1 [ true, %[[ENTRY]] ], [ false, %[[FOR_BODY]] ]
; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_BODY]], label %[[FOR_COND_CLEANUP:.*]]
; CHECK:       [[FOR_COND_CLEANUP]]:
; CHECK-NEXT:    [[SQRT:%.*]] = call double @llvm.sqrt.f64(double [[RMSD_0]])
; CHECK-NEXT:    ret double [[SQRT]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[SUB:%.*]] = fsub double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[FMACALL]] = call double @llvm.fma.f64(double [[SUB]], double [[SUB]], double [[RMSD_0]])
; CHECK-NEXT:    br label %[[FOR_COND]]
;
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %RMSD.0 = phi double [ 0.000000e+00, %entry ], [ %fmacall, %for.body ]
  %cmp = phi i1 [ true, %entry ], [ false, %for.body ]
  br i1 %cmp, label %for.body, label %for.cond.cleanup

for.cond.cleanup:                                 ; preds = %for.cond
  %call = call double @sqrt(double noundef %RMSD.0)
  ret double %call

for.body:                                         ; preds = %for.cond
  %sub = fsub double %distmat1_, %distmat2_
  %fmacall = call double @llvm.fma.f64(double %sub, double %sub, double %RMSD.0)
  br label %for.cond
}

define double @nonSquareCompareDistmats(double noundef %distmat1_, double noundef %distmat2_) {
; CHECK-LABEL: define double @nonSquareCompareDistmats(
; CHECK-SAME: double noundef [[DISTMAT1_:%.*]], double noundef [[DISTMAT2_:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[FOR_COND:.*]]
; CHECK:       [[FOR_COND]]:
; CHECK-NEXT:    [[RMSD_0:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[FMACALL:%.*]], %[[FOR_BODY:.*]] ]
; CHECK-NEXT:    [[CMP:%.*]] = phi i1 [ true, %[[ENTRY]] ], [ false, %[[FOR_BODY]] ]
; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_BODY]], label %[[FOR_COND_CLEANUP:.*]]
; CHECK:       [[FOR_COND_CLEANUP]]:
; CHECK-NEXT:    [[CALL:%.*]] = call double @sqrt(double noundef [[RMSD_0]])
; CHECK-NEXT:    ret double [[CALL]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[SUB:%.*]] = fsub double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[ADD:%.*]] = fadd double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[FMACALL]] = call double @llvm.fmuladd.f64(double [[SUB]], double [[ADD]], double [[RMSD_0]])
; CHECK-NEXT:    br label %[[FOR_COND]]
;
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %RMSD.0 = phi double [ 0.000000e+00, %entry ], [ %fmacall, %for.body ]
  %cmp = phi i1 [ true, %entry ], [ false, %for.body ]
  br i1 %cmp, label %for.body, label %for.cond.cleanup

for.cond.cleanup:                                 ; preds = %for.cond
  %call = call double @sqrt(double noundef %RMSD.0)
  ret double %call

for.body:                                         ; preds = %for.cond
  %sub = fsub double %distmat1_, %distmat2_
  %add = fadd double %distmat1_, %distmat2_
  %fmacall = call double @llvm.fmuladd.f64(double %sub, double %add, double %RMSD.0)
  br label %for.cond
}

define double @negInitialCompareDistmats(double noundef %distmat1_, double noundef %distmat2_) {
; CHECK-LABEL: define double @negInitialCompareDistmats(
; CHECK-SAME: double noundef [[DISTMAT1_:%.*]], double noundef [[DISTMAT2_:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[FOR_COND:.*]]
; CHECK:       [[FOR_COND]]:
; CHECK-NEXT:    [[RMSD_0:%.*]] = phi double [ -1.000000e+00, %[[ENTRY]] ], [ [[FMACALL:%.*]], %[[FOR_BODY:.*]] ]
; CHECK-NEXT:    [[CMP:%.*]] = phi i1 [ true, %[[ENTRY]] ], [ false, %[[FOR_BODY]] ]
; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_BODY]], label %[[FOR_COND_CLEANUP:.*]]
; CHECK:       [[FOR_COND_CLEANUP]]:
; CHECK-NEXT:    [[CALL:%.*]] = call double @sqrt(double noundef [[RMSD_0]])
; CHECK-NEXT:    ret double [[CALL]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[SUB:%.*]] = fsub double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[FMACALL]] = call double @llvm.fmuladd.f64(double [[SUB]], double [[SUB]], double [[RMSD_0]])
; CHECK-NEXT:    br label %[[FOR_COND]]
;
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %RMSD.0 = phi double [ -1.000000e+00, %entry ], [ %fmacall, %for.body ]
  %cmp = phi i1 [ true, %entry ], [ false, %for.body ]
  br i1 %cmp, label %for.body, label %for.cond.cleanup

for.cond.cleanup:                                 ; preds = %for.cond
  %call = call double @sqrt(double noundef %RMSD.0)
  ret double %call

for.body:                                         ; preds = %for.cond
  %sub = fsub double %distmat1_, %distmat2_
  %fmacall = call double @llvm.fmuladd.f64(double %sub, double %sub, double %RMSD.0)
  br label %for.cond
}

define double @notMatchingRecurrenceCompareDistmats(double noundef %distmat1_, double noundef %distmat2_) {
; CHECK-LABEL: define double @notMatchingRecurrenceCompareDistmats(
; CHECK-SAME: double noundef [[DISTMAT1_:%.*]], double noundef [[DISTMAT2_:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[FOR_COND:.*]]
; CHECK:       [[FOR_COND]]:
; CHECK-NEXT:    [[RMSD_0:%.*]] = phi double [ -1.000000e+00, %[[ENTRY]] ], [ [[FMACALL:%.*]], %[[FOR_BODY:.*]] ]
; CHECK-NEXT:    [[CMP:%.*]] = phi i1 [ true, %[[ENTRY]] ], [ false, %[[FOR_BODY]] ]
; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_BODY]], label %[[FOR_COND_CLEANUP:.*]]
; CHECK:       [[FOR_COND_CLEANUP]]:
; CHECK-NEXT:    [[CALL:%.*]] = call double @sqrt(double noundef [[RMSD_0]])
; CHECK-NEXT:    ret double [[CALL]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[SUB:%.*]] = fsub double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[FMACALL]] = call double @llvm.fmuladd.f64(double [[SUB]], double [[SUB]], double [[SUB]])
; CHECK-NEXT:    br label %[[FOR_COND]]
;
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %RMSD.0 = phi double [ -1.000000e+00, %entry ], [ %fmacall, %for.body ]
  %cmp = phi i1 [ true, %entry ], [ false, %for.body ]
  br i1 %cmp, label %for.body, label %for.cond.cleanup

for.cond.cleanup:                                 ; preds = %for.cond
  %call = call double @sqrt(double noundef %RMSD.0)
  ret double %call

for.body:                                         ; preds = %for.cond
  %sub = fsub double %distmat1_, %distmat2_
  %fmacall = call double @llvm.fmuladd.f64(double %sub, double %sub, double %sub)
  br label %for.cond
}

define i1 @test_phi_operand_crash(ptr %arena, i1 %exitcond) {
; CHECK-LABEL: define i1 @test_phi_operand_crash(
; CHECK-SAME: ptr [[ARENA:%.*]], i1 [[EXITCOND:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[LOOP:.*]]
; CHECK:       [[LOOP]]:
; CHECK-NEXT:    [[DOT026:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ 1.000000e+00, %[[LOOP_BACKEDGE:.*]] ]
; CHECK-NEXT:    br i1 true, label %[[LOAD_BLOCK:.*]], label %[[ZERO_BLOCK:.*]]
; CHECK:       [[ZERO_BLOCK]]:
; CHECK-NEXT:    br label %[[LOOP_BACKEDGE]]
; CHECK:       [[LOAD_BLOCK]]:
; CHECK-NEXT:    [[LOADED_VAL:%.*]] = load double, ptr [[ARENA]], align 8
; CHECK-NEXT:    br label %[[LOOP_BACKEDGE]]
; CHECK:       [[LOOP_BACKEDGE]]:
; CHECK-NEXT:    [[DOT0_I22:%.*]] = phi double [ [[LOADED_VAL]], %[[LOAD_BLOCK]] ], [ 0.000000e+00, %[[ZERO_BLOCK]] ]
; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[LOOP]], label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    [[FMA_RESULT:%.*]] = tail call double @llvm.fmuladd.f64(double 0.000000e+00, double [[DOT0_I22]], double [[DOT026]])
; CHECK-NEXT:    [[CMP:%.*]] = fcmp oge double [[FMA_RESULT]], 0.000000e+00
; CHECK-NEXT:    ret i1 [[CMP]]
;
entry:
  br label %loop

loop:
  %.026 = phi double [ 0.000000e+00, %entry ], [ 1.000000e+00, %loop_backedge ]
  br i1 true, label %load_block, label %zero_block

zero_block:
  br label %loop_backedge

load_block:
  %loaded_val = load double, ptr %arena, align 8
  br label %loop_backedge

loop_backedge:
  %.0.i22 = phi double [ %loaded_val, %load_block ], [ 0.000000e+00, %zero_block ]
  br i1 %exitcond, label %loop, label %exit

exit:
  %fma_result = tail call double @llvm.fmuladd.f64(double 0.000000e+00, double %.0.i22, double %.026)
  %cmp = fcmp oge double %fma_result, 0.000000e+00
  ret i1 %cmp
}

define i1 @test_ternary_recurrence_crash(double noundef %distmat1_, double noundef %distmat2_, double %x) {
; CHECK-LABEL: define i1 @test_ternary_recurrence_crash(
; CHECK-SAME: double noundef [[DISTMAT1_:%.*]], double noundef [[DISTMAT2_:%.*]], double [[X:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    [[INIT_VAL:%.*]] = call double @llvm.sqrt.f64(double [[X]])
; CHECK-NEXT:    br label %[[FOR_COND:.*]]
; CHECK:       [[FOR_COND]]:
; CHECK-NEXT:    [[RMSD_0:%.*]] = phi double [ [[INIT_VAL]], %[[ENTRY]] ], [ [[FMACALL:%.*]], %[[FOR_BODY:.*]] ]
; CHECK-NEXT:    [[CMP:%.*]] = phi i1 [ true, %[[ENTRY]] ], [ false, %[[FOR_BODY]] ]
; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_BODY]], label %[[FOR_COND_CLEANUP:.*]]
; CHECK:       [[FOR_COND_CLEANUP]]:
; CHECK-NEXT:    [[RES:%.*]] = fcmp oge double [[RMSD_0]], 0.000000e+00
; CHECK-NEXT:    ret i1 [[RES]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[SUB:%.*]] = fsub double [[DISTMAT1_]], [[DISTMAT2_]]
; CHECK-NEXT:    [[FMACALL]] = call double @llvm.fmuladd.f64(double noundef [[SUB]], double noundef [[SUB]], double [[RMSD_0]])
; CHECK-NEXT:    br label %[[FOR_COND]]
;
entry:
  %init_val = call double @llvm.sqrt.f64(double %x)
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %RMSD.0 = phi double [ %init_val, %entry ], [ %fmacall, %for.body ]
  %cmp = phi i1 [ true, %entry ], [ false, %for.body ]
  br i1 %cmp, label %for.body, label %for.cond.cleanup

for.cond.cleanup:                                 ; preds = %for.cond
  %res = fcmp oge double %RMSD.0, 0.000000e+00
  ret i1 %res

for.body:                                         ; preds = %for.cond
  %sub = fsub double %distmat1_, %distmat2_
  %fmacall = call double @llvm.fmuladd.f64(double noundef %sub, double noundef %sub, double %RMSD.0)
  br label %for.cond
}

declare double @llvm.fmuladd.f64(double, double, double)

declare double @llvm.fma.f64(double, double, double)

declare double @sqrt(double noundef)