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[SCCP] Add tests for gep nuw inference (NFC)

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Nikita Popov
2024-12-05 16:09:36 +01:00
parent d09632ba81
commit 2bd3174226
1 changed files with 56 additions and 0 deletions
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llvm/test/Transforms/SCCP/gep-nuw.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=sccp < %s | FileCheck %s
define ptr @gep_nusw_nneg(ptr %p, i32 %x, i32 %y) {
; CHECK-LABEL: define ptr @gep_nusw_nneg(
; CHECK-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[X_EXT:%.*]] = zext i32 [[X]] to i64
; CHECK-NEXT: [[Y_EXT:%.*]] = zext i32 [[Y]] to i64
; CHECK-NEXT: [[GEP:%.*]] = getelementptr nusw [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y_EXT]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%x.ext = zext i32 %x to i64
%y.ext = zext i32 %y to i64
%gep = getelementptr nusw [1 x i8], ptr %p, i64 %x.ext, i64 %y.ext
ret ptr %gep
}
define ptr @gep_inbounds_nneg(ptr %p, i32 %x, i32 %y) {
; CHECK-LABEL: define ptr @gep_inbounds_nneg(
; CHECK-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[X_EXT:%.*]] = zext i32 [[X]] to i64
; CHECK-NEXT: [[Y_EXT:%.*]] = zext i32 [[Y]] to i64
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y_EXT]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%x.ext = zext i32 %x to i64
%y.ext = zext i32 %y to i64
%gep = getelementptr inbounds [1 x i8], ptr %p, i64 %x.ext, i64 %y.ext
ret ptr %gep
}
define ptr @gep_nothin_nneg(ptr %p, i32 %x, i32 %y) {
; CHECK-LABEL: define ptr @gep_nothin_nneg(
; CHECK-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[X_EXT:%.*]] = zext i32 [[X]] to i64
; CHECK-NEXT: [[Y_EXT:%.*]] = zext i32 [[Y]] to i64
; CHECK-NEXT: [[GEP:%.*]] = getelementptr [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y_EXT]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%x.ext = zext i32 %x to i64
%y.ext = zext i32 %y to i64
%gep = getelementptr [1 x i8], ptr %p, i64 %x.ext, i64 %y.ext
ret ptr %gep
}
define ptr @gep_nusw_not_nneg(ptr %p, i32 %x, i64 %y) {
; CHECK-LABEL: define ptr @gep_nusw_not_nneg(
; CHECK-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i64 [[Y:%.*]]) {
; CHECK-NEXT: [[X_EXT:%.*]] = zext i32 [[X]] to i64
; CHECK-NEXT: [[GEP:%.*]] = getelementptr nusw [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%x.ext = zext i32 %x to i64
%gep = getelementptr nusw [1 x i8], ptr %p, i64 %x.ext, i64 %y
ret ptr %gep
}