[llvm] e09c76f - [Instcombine] Precommit tests update for icmp(trunc cttz/ctlz(x), C); NFC
via llvm-commits
llvm-commits at lists.llvm.org
Wed Feb 8 21:03:59 PST 2023
Author: chenglin.bi
Date: 2023-02-09T13:03:50+08:00
New Revision: e09c76fe2ad3bd9bb8f5f796247bfda704df02ea
URL: https://github.com/llvm/llvm-project/commit/e09c76fe2ad3bd9bb8f5f796247bfda704df02ea
DIFF: https://github.com/llvm/llvm-project/commit/e09c76fe2ad3bd9bb8f5f796247bfda704df02ea.diff
LOG: [Instcombine] Precommit tests update for icmp(trunc cttz/ctlz(x), C); NFC
Added:
Modified:
llvm/test/Transforms/InstCombine/cmp-intrinsic.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll b/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll
index 48bd288ce6e9..1910da3d543d 100644
--- a/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll
+++ b/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll
@@ -4,13 +4,16 @@
declare i16 @llvm.bswap.i16(i16)
declare i32 @llvm.bswap.i32(i32)
declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)
+declare i32 @llvm.cttz.i32(i32, i1)
declare i33 @llvm.cttz.i33(i33, i1)
declare i32 @llvm.ctlz.i32(i32, i1)
+declare i33 @llvm.ctlz.i33(i33, i1)
declare i8 @llvm.ctpop.i8(i8)
declare i11 @llvm.ctpop.i11(i11)
declare <2 x i32> @llvm.cttz.v2i32(<2 x i32>, i1)
declare <2 x i32> @llvm.ctlz.v2i32(<2 x i32>, i1)
declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>)
+declare void @use6(i6)
define i1 @bswap_eq_i16(i16 %x) {
; CHECK-LABEL: @bswap_eq_i16(
@@ -538,16 +541,87 @@ define i1 @trunc_cttz_ugt_other_i33_i15(i33 %x) {
ret i1 %cmp
}
-define i1 @trunc_cttz_ult_other_i33_i15(i33 %x) {
-; CHECK-LABEL: @trunc_cttz_ult_other_i33_i15(
-; CHECK-NEXT: [[TZ:%.*]] = tail call i33 @llvm.cttz.i33(i33 [[X:%.*]], i1 false), !range [[RNG1]]
-; CHECK-NEXT: [[TRUNC:%.*]] = trunc i33 [[TZ]] to i15
-; CHECK-NEXT: [[CMP:%.*]] = icmp ult i15 [[TRUNC]], 7
+define i1 @trunc_cttz_ult_other_i33_i6(i33 %x) {
+; CHECK-LABEL: @trunc_cttz_ult_other_i33_i6(
+; CHECK-NEXT: [[TZ:%.*]] = tail call i33 @llvm.cttz.i33(i33 [[X:%.*]], i1 true), !range [[RNG1]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i33 [[TZ]] to i6
+; CHECK-NEXT: [[CMP:%.*]] = icmp ult i6 [[TRUNC]], 7
; CHECK-NEXT: ret i1 [[CMP]]
;
- %tz = tail call i33 @llvm.cttz.i33(i33 %x, i1 false)
- %trunc = trunc i33 %tz to i15
- %cmp = icmp ult i15 %trunc, 7
+ %tz = tail call i33 @llvm.cttz.i33(i33 %x, i1 true)
+ %trunc = trunc i33 %tz to i6
+ %cmp = icmp ult i6 %trunc, 7
+ ret i1 %cmp
+}
+
+define i1 @trunc_cttz_ult_other_i33_i5(i33 %x) {
+; CHECK-LABEL: @trunc_cttz_ult_other_i33_i5(
+; CHECK-NEXT: [[TZ:%.*]] = tail call i33 @llvm.cttz.i33(i33 [[X:%.*]], i1 true), !range [[RNG1]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i33 [[TZ]] to i5
+; CHECK-NEXT: [[CMP:%.*]] = icmp ult i5 [[TRUNC]], 7
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %tz = tail call i33 @llvm.cttz.i33(i33 %x, i1 true)
+ %trunc = trunc i33 %tz to i5
+ %cmp = icmp ult i5 %trunc, 7
+ ret i1 %cmp
+}
+
+define i1 @trunc_cttz_true_ult_other_i32_i5(i32 %x) {
+; CHECK-LABEL: @trunc_cttz_true_ult_other_i32_i5(
+; CHECK-NEXT: [[TZ:%.*]] = tail call i32 @llvm.cttz.i32(i32 [[X:%.*]], i1 true), !range [[RNG0]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[TZ]] to i5
+; CHECK-NEXT: [[CMP:%.*]] = icmp ult i5 [[TRUNC]], 7
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %tz = tail call i32 @llvm.cttz.i32(i32 %x, i1 true)
+ %trunc = trunc i32 %tz to i5
+ %cmp = icmp ult i5 %trunc, 7
+ ret i1 %cmp
+}
+
+; negative case, is_zero_poison == false && log2(src bitwidth) == dest bitwidth
+
+define i1 @trunc_cttz_false_ult_other_i32_i5(i32 %x) {
+; CHECK-LABEL: @trunc_cttz_false_ult_other_i32_i5(
+; CHECK-NEXT: [[TZ:%.*]] = tail call i32 @llvm.cttz.i32(i32 [[X:%.*]], i1 false), !range [[RNG0]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[TZ]] to i5
+; CHECK-NEXT: [[CMP:%.*]] = icmp ult i5 [[TRUNC]], 7
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %tz = tail call i32 @llvm.cttz.i32(i32 %x, i1 false)
+ %trunc = trunc i32 %tz to i5
+ %cmp = icmp ult i5 %trunc, 7
+ ret i1 %cmp
+}
+
+define i1 @trunc_cttz_false_ult_other_i32_i6(i32 %x) {
+; CHECK-LABEL: @trunc_cttz_false_ult_other_i32_i6(
+; CHECK-NEXT: [[TZ:%.*]] = tail call i32 @llvm.cttz.i32(i32 [[X:%.*]], i1 false), !range [[RNG0]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[TZ]] to i6
+; CHECK-NEXT: [[CMP:%.*]] = icmp ult i6 [[TRUNC]], 7
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %tz = tail call i32 @llvm.cttz.i32(i32 %x, i1 false)
+ %trunc = trunc i32 %tz to i6
+ %cmp = icmp ult i6 %trunc, 7
+ ret i1 %cmp
+}
+
+; negative case, trunc is not one use
+
+define i1 @trunc_cttz_false_ult_other_i32_i6_extra_use(i32 %x) {
+; CHECK-LABEL: @trunc_cttz_false_ult_other_i32_i6_extra_use(
+; CHECK-NEXT: [[TZ:%.*]] = tail call i32 @llvm.cttz.i32(i32 [[X:%.*]], i1 false), !range [[RNG0]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[TZ]] to i6
+; CHECK-NEXT: call void @use6(i6 [[TRUNC]])
+; CHECK-NEXT: [[CMP:%.*]] = icmp ult i6 [[TRUNC]], 7
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %tz = tail call i32 @llvm.cttz.i32(i32 %x, i1 false)
+ %trunc = trunc i32 %tz to i6
+ call void @use6(i6 %trunc)
+ %cmp = icmp ult i6 %trunc, 7
ret i1 %cmp
}
@@ -573,16 +647,87 @@ define i1 @trunc_ctlz_ugt_one_i32(i32 %x) {
ret i1 %cmp
}
-define i1 @trunc_ctlz_ugt_other_i32(i32 %x) {
-; CHECK-LABEL: @trunc_ctlz_ugt_other_i32(
+define i1 @trunc_ctlz_ugt_other_i33_i6(i33 %x) {
+; CHECK-LABEL: @trunc_ctlz_ugt_other_i33_i6(
+; CHECK-NEXT: [[LZ:%.*]] = tail call i33 @llvm.ctlz.i33(i33 [[X:%.*]], i1 true), !range [[RNG1]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i33 [[LZ]] to i6
+; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i6 [[TRUNC]], 4
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %lz = tail call i33 @llvm.ctlz.i33(i33 %x, i1 true)
+ %trunc = trunc i33 %lz to i6
+ %cmp = icmp ugt i6 %trunc, 4
+ ret i1 %cmp
+}
+
+define i1 @trunc_ctlz_ugt_other_i33_i5(i33 %x) {
+; CHECK-LABEL: @trunc_ctlz_ugt_other_i33_i5(
+; CHECK-NEXT: [[LZ:%.*]] = tail call i33 @llvm.ctlz.i33(i33 [[X:%.*]], i1 true), !range [[RNG1]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i33 [[LZ]] to i5
+; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i5 [[TRUNC]], 4
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %lz = tail call i33 @llvm.ctlz.i33(i33 %x, i1 true)
+ %trunc = trunc i33 %lz to i5
+ %cmp = icmp ugt i5 %trunc, 4
+ ret i1 %cmp
+}
+
+define i1 @trunc_ctlz_true_ugt_other_i32_i5(i32 %x) {
+; CHECK-LABEL: @trunc_ctlz_true_ugt_other_i32_i5(
+; CHECK-NEXT: [[LZ:%.*]] = tail call i32 @llvm.ctlz.i32(i32 [[X:%.*]], i1 true), !range [[RNG0]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[LZ]] to i5
+; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i5 [[TRUNC]], 4
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %lz = tail call i32 @llvm.ctlz.i32(i32 %x, i1 true)
+ %trunc = trunc i32 %lz to i5
+ %cmp = icmp ugt i5 %trunc, 4
+ ret i1 %cmp
+}
+
+; negative case, is_zero_poison == false && log2(src bitwidth) == dest bitwidth
+
+define i1 @trunc_ctlz_false_ugt_other_i32_i5(i32 %x) {
+; CHECK-LABEL: @trunc_ctlz_false_ugt_other_i32_i5(
; CHECK-NEXT: [[LZ:%.*]] = tail call i32 @llvm.ctlz.i32(i32 [[X:%.*]], i1 false), !range [[RNG0]]
-; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[LZ]] to i15
-; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i15 [[TRUNC]], 4
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[LZ]] to i5
+; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i5 [[TRUNC]], 4
; CHECK-NEXT: ret i1 [[CMP]]
;
%lz = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
- %trunc = trunc i32 %lz to i15
- %cmp = icmp ugt i15 %trunc, 4
+ %trunc = trunc i32 %lz to i5
+ %cmp = icmp ugt i5 %trunc, 4
+ ret i1 %cmp
+}
+
+define i1 @trunc_ctlz_false_ugt_other_i32_i6(i32 %x) {
+; CHECK-LABEL: @trunc_ctlz_false_ugt_other_i32_i6(
+; CHECK-NEXT: [[LZ:%.*]] = tail call i32 @llvm.ctlz.i32(i32 [[X:%.*]], i1 false), !range [[RNG0]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[LZ]] to i6
+; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i6 [[TRUNC]], 4
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %lz = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
+ %trunc = trunc i32 %lz to i6
+ %cmp = icmp ugt i6 %trunc, 4
+ ret i1 %cmp
+}
+
+; negative case, trunc is not one use
+
+define i1 @trunc_ctlz_false_ugt_other_i32_i6_extra_use(i32 %x) {
+; CHECK-LABEL: @trunc_ctlz_false_ugt_other_i32_i6_extra_use(
+; CHECK-NEXT: [[LZ:%.*]] = tail call i32 @llvm.ctlz.i32(i32 [[X:%.*]], i1 false), !range [[RNG0]]
+; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[LZ]] to i6
+; CHECK-NEXT: call void @use6(i6 [[TRUNC]])
+; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i6 [[TRUNC]], 4
+; CHECK-NEXT: ret i1 [[CMP]]
+;
+ %lz = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
+ %trunc = trunc i32 %lz to i6
+ call void @use6(i6 %trunc)
+ %cmp = icmp ugt i6 %trunc, 4
ret i1 %cmp
}
More information about the llvm-commits
mailing list