055bfc0271
GEPs are often in the form `gep [N x %T], ptr %p, i64 0, i64 %idx`. Canonicalize these to `gep %T, ptr %p, i64 %idx`. This enables transforms that only support one GEP index to work and improves CSE. Various transforms were recently hardened to make sure they still work without the leading index.
127 lines
4.1 KiB
LLVM
127 lines
4.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=instcombine -S < %s | FileCheck %s
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target datalayout = "E-p:64:64:64-p1:64:64:64-p2:32:32:32-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
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@x = external global <2 x i64>, align 16
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@xx = external global [13 x <2 x i64>], align 16
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@x.as2 = external addrspace(2) global <2 x i64>, align 16
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define <2 x i64> @static_hem() {
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; CHECK-LABEL: @static_hem(
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; CHECK-NEXT: [[L:%.*]] = load <2 x i64>, ptr getelementptr (i8, ptr @x, i64 112), align 1
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; CHECK-NEXT: ret <2 x i64> [[L]]
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;
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%t = getelementptr <2 x i64>, ptr @x, i32 7
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%l = load <2 x i64>, ptr %t, align 1
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ret <2 x i64> %l
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}
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define <2 x i64> @hem(i32 %i) {
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; CHECK-LABEL: @hem(
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; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
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; CHECK-NEXT: [[T:%.*]] = getelementptr <2 x i64>, ptr @x, i64 [[TMP1]]
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; CHECK-NEXT: [[L:%.*]] = load <2 x i64>, ptr [[T]], align 1
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; CHECK-NEXT: ret <2 x i64> [[L]]
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;
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%t = getelementptr <2 x i64>, ptr @x, i32 %i
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%l = load <2 x i64>, ptr %t, align 1
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ret <2 x i64> %l
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}
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define <2 x i64> @hem_2d(i32 %i, i32 %j) {
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; CHECK-LABEL: @hem_2d(
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; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = sext i32 [[J:%.*]] to i64
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; CHECK-NEXT: [[T_SPLIT:%.*]] = getelementptr [13 x <2 x i64>], ptr @xx, i64 [[TMP1]]
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; CHECK-NEXT: [[T:%.*]] = getelementptr <2 x i64>, ptr [[T_SPLIT]], i64 [[TMP2]]
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; CHECK-NEXT: [[L:%.*]] = load <2 x i64>, ptr [[T]], align 1
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; CHECK-NEXT: ret <2 x i64> [[L]]
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;
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%t = getelementptr [13 x <2 x i64>], ptr @xx, i32 %i, i32 %j
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%l = load <2 x i64>, ptr %t, align 1
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ret <2 x i64> %l
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}
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define <2 x i64> @foo() {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: [[L:%.*]] = load <2 x i64>, ptr @x, align 1
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; CHECK-NEXT: ret <2 x i64> [[L]]
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;
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%l = load <2 x i64>, ptr @x, align 1
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ret <2 x i64> %l
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}
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define <2 x i64> @bar() {
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; CHECK-LABEL: @bar(
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; CHECK-NEXT: [[T:%.*]] = alloca <2 x i64>, align 16
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; CHECK-NEXT: call void @kip(ptr nonnull [[T]])
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; CHECK-NEXT: [[L:%.*]] = load <2 x i64>, ptr [[T]], align 1
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; CHECK-NEXT: ret <2 x i64> [[L]]
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;
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%t = alloca <2 x i64>
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call void @kip(ptr %t)
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%l = load <2 x i64>, ptr %t, align 1
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ret <2 x i64> %l
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}
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define void @static_hem_store(<2 x i64> %y) {
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; CHECK-LABEL: @static_hem_store(
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; CHECK-NEXT: store <2 x i64> [[Y:%.*]], ptr getelementptr (i8, ptr @x, i64 112), align 1
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; CHECK-NEXT: ret void
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;
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%t = getelementptr <2 x i64>, ptr @x, i32 7
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store <2 x i64> %y, ptr %t, align 1
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ret void
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}
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define void @hem_store(i32 %i, <2 x i64> %y) {
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; CHECK-LABEL: @hem_store(
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; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
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; CHECK-NEXT: [[T:%.*]] = getelementptr <2 x i64>, ptr @x, i64 [[TMP1]]
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; CHECK-NEXT: store <2 x i64> [[Y:%.*]], ptr [[T]], align 1
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; CHECK-NEXT: ret void
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;
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%t = getelementptr <2 x i64>, ptr @x, i32 %i
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store <2 x i64> %y, ptr %t, align 1
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ret void
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}
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define void @hem_2d_store(i32 %i, i32 %j, <2 x i64> %y) {
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; CHECK-LABEL: @hem_2d_store(
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; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = sext i32 [[J:%.*]] to i64
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; CHECK-NEXT: [[T_SPLIT:%.*]] = getelementptr [13 x <2 x i64>], ptr @xx, i64 [[TMP1]]
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; CHECK-NEXT: [[T:%.*]] = getelementptr <2 x i64>, ptr [[T_SPLIT]], i64 [[TMP2]]
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; CHECK-NEXT: store <2 x i64> [[Y:%.*]], ptr [[T]], align 1
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; CHECK-NEXT: ret void
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;
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%t = getelementptr [13 x <2 x i64>], ptr @xx, i32 %i, i32 %j
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store <2 x i64> %y, ptr %t, align 1
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ret void
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}
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define void @foo_store(<2 x i64> %y) {
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; CHECK-LABEL: @foo_store(
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; CHECK-NEXT: store <2 x i64> [[Y:%.*]], ptr @x, align 1
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; CHECK-NEXT: ret void
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;
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store <2 x i64> %y, ptr @x, align 1
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ret void
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}
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define void @bar_store(<2 x i64> %y) {
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; CHECK-LABEL: @bar_store(
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; CHECK-NEXT: [[T:%.*]] = alloca <2 x i64>, align 16
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; CHECK-NEXT: call void @kip(ptr nonnull [[T]])
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; CHECK-NEXT: store <2 x i64> [[Y:%.*]], ptr [[T]], align 1
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; CHECK-NEXT: ret void
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;
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%t = alloca <2 x i64>
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call void @kip(ptr %t)
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store <2 x i64> %y, ptr %t, align 1
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ret void
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}
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declare void @kip(ptr %t)
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