82 lines
2.4 KiB
LLVM
82 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -passes=sccp -S | FileCheck %s
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define i1 @vscale_i32_noattr() {
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; CHECK-LABEL: define i1 @vscale_i32_noattr() {
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; CHECK-NEXT: [[SCALE:%.*]] = call i32 @llvm.vscale.i32()
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ule i32 [[SCALE]], 16
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; CHECK-NEXT: [[RES:%.*]] = and i1 true, [[CMP2]]
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; CHECK-NEXT: ret i1 [[RES]]
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;
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%scale = call i32 @llvm.vscale.i32()
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%cmp1 = icmp uge i32 %scale, 1
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%cmp2 = icmp ule i32 %scale, 16
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%res = and i1 %cmp1, %cmp2
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ret i1 %res
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}
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define i1 @vscale_i32_attr() vscale_range(1, 16) {
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; CHECK-LABEL: define i1 @vscale_i32_attr(
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; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[SCALE:%.*]] = call i32 @llvm.vscale.i32()
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; CHECK-NEXT: ret i1 true
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;
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%scale = call i32 @llvm.vscale.i32()
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%cmp1 = icmp uge i32 %scale, 1
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%cmp2 = icmp ule i32 %scale, 16
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%res = and i1 %cmp1, %cmp2
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ret i1 %res
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}
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define i1 @vscale_i64_noattr() {
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; CHECK-LABEL: define i1 @vscale_i64_noattr() {
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; CHECK-NEXT: [[SCALE:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ule i64 [[SCALE]], 16
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; CHECK-NEXT: [[RES:%.*]] = and i1 true, [[CMP2]]
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; CHECK-NEXT: ret i1 [[RES]]
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;
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%scale = call i64 @llvm.vscale.i64()
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%cmp1 = icmp uge i64 %scale, 1
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%cmp2 = icmp ule i64 %scale, 16
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%res = and i1 %cmp1, %cmp2
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ret i1 %res
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}
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define i1 @vscale_i64_attr() vscale_range(1, 16) {
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; CHECK-LABEL: define i1 @vscale_i64_attr(
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; CHECK-SAME: ) #[[ATTR0]] {
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; CHECK-NEXT: [[SCALE:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: ret i1 true
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;
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%scale = call i64 @llvm.vscale.i64()
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%cmp1 = icmp uge i64 %scale, 1
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%cmp2 = icmp ule i64 %scale, 16
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%res = and i1 %cmp1, %cmp2
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ret i1 %res
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}
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define i32 @vscale_branch_elim(i32 %x) vscale_range(1, 16) {
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; CHECK-LABEL: define i32 @vscale_branch_elim(
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; CHECK-SAME: i32 [[X:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[SCALE:%.*]] = call i32 @llvm.vscale.i32()
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; CHECK-NEXT: [[BOUND:%.*]] = shl nuw nsw i32 [[SCALE]], 3
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; CHECK-NEXT: br label %[[IF_END:.*]]
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; CHECK: [[IF_END]]:
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; CHECK-NEXT: ret i32 [[X]]
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;
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entry:
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%scale = call i32 @llvm.vscale.i32()
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%bound = shl nsw nuw i32 %scale, 3
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%cmp = icmp uge i32 1, %bound
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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%double = mul i32 %x, 2
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br label %if.end
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if.end:
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%res = phi i32 [ %x, %entry ], [ %double, %if.then]
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ret i32 %res
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}
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