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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=hardware-loops -verify-loop-lcssa -S | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "ppc64-unknown-linux-elf"
declare i1 @cond() readnone
; Make sure we do not crash on the test.
define void @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: br label [[FOR_INC:%.*]]
; CHECK: for.inc:
; CHECK-NEXT: [[C_0:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C_0]], label [[WHILE_COND25_PREHEADER:%.*]], label [[FOR_BODY]]
; CHECK: while.cond25.preheader:
; CHECK-NEXT: [[INDVARS_IV349_PH:%.*]] = phi i64 [ 50, [[FOR_INC]] ]
; CHECK-NEXT: call void @llvm.set.loop.iterations.i64(i64 51)
; CHECK-NEXT: br label [[WHILE_COND25:%.*]]
; CHECK: while.cond25:
; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[WHILE_COND25_PREHEADER]] ], [ [[INDVAR_NEXT:%.*]], [[LAND_RHS:%.*]] ]
; CHECK-NEXT: [[INDVARS_IV349:%.*]] = phi i64 [ [[INDVARS_IV_NEXT350:%.*]], [[LAND_RHS]] ], [ [[INDVARS_IV349_PH]], [[WHILE_COND25_PREHEADER]] ]
; CHECK-NEXT: [[TMP0:%.*]] = call i1 @llvm.loop.decrement.i64(i64 1)
; CHECK-NEXT: br i1 [[TMP0]], label [[LAND_RHS]], label [[WHILE_END187:%.*]]
; CHECK: land.rhs:
; CHECK-NEXT: [[INDVARS_IV_NEXT350]] = add nsw i64 [[INDVARS_IV349]], -1
; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1
; CHECK-NEXT: br i1 [[C_1]], label [[WHILE_COND25]], label [[WHILE_END:%.*]]
; CHECK: while.end:
; CHECK-NEXT: [[INDVAR_LCSSA1:%.*]] = phi i64 [ [[INDVAR]], [[LAND_RHS]] ]
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C_2]], label [[WHILE_END187]], label [[WHILE_COND35_PREHEADER:%.*]]
; CHECK: while.cond35.preheader:
; CHECK-NEXT: [[TMP1:%.*]] = mul nsw i64 [[INDVAR_LCSSA1]], -1
; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[TMP1]], 51
; CHECK-NEXT: call void @llvm.set.loop.iterations.i64(i64 [[TMP2]])
; CHECK-NEXT: br label [[WHILE_COND35:%.*]]
; CHECK: while.cond35:
; CHECK-NEXT: [[TMP3:%.*]] = call i1 @llvm.loop.decrement.i64(i64 1)
; CHECK-NEXT: br i1 [[TMP3]], label [[LAND_RHS37:%.*]], label [[IF_END51:%.*]]
; CHECK: land.rhs37:
; CHECK-NEXT: br label [[WHILE_COND35]]
; CHECK: if.end51:
; CHECK-NEXT: br label [[WHILE_COND_BACKEDGE:%.*]]
; CHECK: while.cond.backedge:
; CHECK-NEXT: br label [[WHILE_COND]]
; CHECK: while.end187:
; CHECK-NEXT: ret void
;
entry:
br label %while.cond
while.cond: ; preds = %while.cond.backedge, %entry
br label %for.body
for.body: ; preds = %for.inc, %while.cond
br label %for.inc
for.inc: ; preds = %for.body
%c.0 = call i1 @cond()
br i1 %c.0, label %while.cond25, label %for.body
while.cond25: ; preds = %land.rhs, %for.inc
%indvars.iv349 = phi i64 [ %indvars.iv.next350, %land.rhs ], [ 50, %for.inc ]
%cmp26.not = icmp eq i64 %indvars.iv349, 0
br i1 %cmp26.not, label %while.end187, label %land.rhs
land.rhs: ; preds = %while.cond25
%indvars.iv.next350 = add nsw i64 %indvars.iv349, -1
%c.1 = call i1 @cond()
br i1 %c.1, label %while.cond25, label %while.end
while.end: ; preds = %land.rhs
%c.2 = call i1 @cond()
br i1 %c.2, label %while.end187, label %while.cond35.preheader
while.cond35.preheader: ; preds = %while.end
%0 = and i64 %indvars.iv349, 4294967295
br label %while.cond35
while.cond35: ; preds = %land.rhs37, %while.cond35.preheader
%indvars.iv351 = phi i64 [ %0, %while.cond35.preheader ], [ %indvars.iv.next352, %land.rhs37 ]
%cmp36 = icmp sgt i64 %indvars.iv351, 0
br i1 %cmp36, label %land.rhs37, label %if.end51
land.rhs37: ; preds = %while.cond35
%indvars.iv.next352 = add nsw i64 %indvars.iv351, -1
br label %while.cond35
if.end51: ; preds = %while.cond35
br label %while.cond.backedge
while.cond.backedge: ; preds = %if.end51
br label %while.cond
while.end187: ; preds = %while.end, %while.cond25
ret void
}
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