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TheRock/compiler/amd-llvm/llvm/test/Transforms/LoopUnroll/X86/high-cost-expansion.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

82 lines
3.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple=x86_64-unknown-linux-gnu -passes='loop-unroll' -unroll-runtime -S < %s 2>&1 | FileCheck %s
define void @mask-high(i64 %arg, ptr dereferenceable(4) %arg1) {
; CHECK-LABEL: @mask-high(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[I:%.*]] = load i32, ptr [[ARG1:%.*]], align 4
; CHECK-NEXT: [[I2:%.*]] = sext i32 [[I]] to i64
; CHECK-NEXT: [[I3:%.*]] = and i64 [[ARG:%.*]], -16
; CHECK-NEXT: [[I4:%.*]] = or disjoint i64 1, [[I3]]
; CHECK-NEXT: [[I5:%.*]] = icmp sgt i64 [[I4]], [[I2]]
; CHECK-NEXT: br i1 [[I5]], label [[BB10:%.*]], label [[BB6_PREHEADER:%.*]]
; CHECK: bb6.preheader:
; CHECK-NEXT: br label [[BB6:%.*]]
; CHECK: bb6:
; CHECK-NEXT: [[I7:%.*]] = phi i64 [ [[I8:%.*]], [[BB6]] ], [ [[I4]], [[BB6_PREHEADER]] ]
; CHECK-NEXT: [[I8]] = add i64 [[I7]], 1
; CHECK-NEXT: [[I9:%.*]] = icmp slt i64 [[I7]], [[I2]]
; CHECK-NEXT: br i1 [[I9]], label [[BB6]], label [[BB10_LOOPEXIT:%.*]]
; CHECK: bb10.loopexit:
; CHECK-NEXT: br label [[BB10]]
; CHECK: bb10:
; CHECK-NEXT: ret void
;
bb:
%i = load i32, ptr %arg1, align 4
%i2 = sext i32 %i to i64
%i3 = and i64 %arg, -16
%i4 = or disjoint i64 1, %i3
%i5 = icmp sgt i64 %i4, %i2
br i1 %i5, label %bb10, label %bb6
bb6: ; preds = %bb6, %bb
%i7 = phi i64 [ %i4, %bb ], [ %i8, %bb6 ]
%i8 = add i64 %i7, 1
%i9 = icmp slt i64 %i7, %i2
br i1 %i9, label %bb6, label %bb10
bb10: ; preds = %bb6, %bb
ret void
}
define void @mask-low(i64 %arg, ptr dereferenceable(4) %arg1) {
; CHECK-LABEL: @mask-low(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[I:%.*]] = load i32, ptr [[ARG1:%.*]], align 4
; CHECK-NEXT: [[I2:%.*]] = sext i32 [[I]] to i64
; CHECK-NEXT: [[I3:%.*]] = and i64 [[ARG:%.*]], 16
; CHECK-NEXT: [[I4:%.*]] = add i64 1, [[I3]]
; CHECK-NEXT: [[I5:%.*]] = icmp sgt i64 [[I4]], [[I2]]
; CHECK-NEXT: br i1 [[I5]], label [[BB10:%.*]], label [[BB6_PREHEADER:%.*]]
; CHECK: bb6.preheader:
; CHECK-NEXT: br label [[BB6:%.*]]
; CHECK: bb6:
; CHECK-NEXT: [[I7:%.*]] = phi i64 [ [[I8:%.*]], [[BB6]] ], [ [[I4]], [[BB6_PREHEADER]] ]
; CHECK-NEXT: [[I8]] = add i64 [[I7]], 1
; CHECK-NEXT: [[I9:%.*]] = icmp slt i64 [[I7]], [[I2]]
; CHECK-NEXT: br i1 [[I9]], label [[BB6]], label [[BB10_LOOPEXIT:%.*]]
; CHECK: bb10.loopexit:
; CHECK-NEXT: br label [[BB10]]
; CHECK: bb10:
; CHECK-NEXT: ret void
;
bb:
%i = load i32, ptr %arg1, align 4
%i2 = sext i32 %i to i64
%i3 = and i64 %arg, 16
%i4 = add i64 1, %i3
%i5 = icmp sgt i64 %i4, %i2
br i1 %i5, label %bb10, label %bb6
bb6: ; preds = %bb6, %bb
%i7 = phi i64 [ %i4, %bb ], [ %i8, %bb6 ]
%i8 = add i64 %i7, 1
%i9 = icmp slt i64 %i7, %i2
br i1 %i9, label %bb6, label %bb10
bb10: ; preds = %bb6, %bb
ret void
}