04b944e230
The only interesting test change is in @PR31262, where the following fold is now performed, while it previously was not: https://alive2.llvm.org/ce/z/a5Qmr6 llvm/test/Transforms/InstSimplify/ConstProp/gep.ll has not been updated, because there is a tradeoff between folding and inrange preservation there that we may want to discuss. Updates have been performed using: https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34
76 lines
2.3 KiB
LLVM
76 lines
2.3 KiB
LLVM
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@a = external global i8
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@b = external global i8
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@c1 = constant i32 trunc (i64 sub (i64 ptrtoint (ptr @a to i64), i64 ptrtoint (ptr @c1 to i64)) to i32)
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@c2 = constant [7 x i32] [i32 0, i32 0,
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i32 trunc (i64 sub (i64 ptrtoint (ptr @a to i64), i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32),
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i32 trunc (i64 sub (i64 ptrtoint (ptr @b to i64), i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32),
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i32 trunc (i64 add (i64 ptrtoint (ptr @b to i64), i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32),
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i32 trunc (i64 sub (i64 ptrtoint (ptr @b to i64), i64 1) to i32),
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i32 trunc (i64 sub (i64 0, i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32)
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]
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; CHECK: @f1
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define ptr @f1() {
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; CHECK: ret ptr @a
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%l = call ptr @llvm.load.relative.i32(ptr @c1, i32 0)
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ret ptr %l
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}
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; CHECK: @f2
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define ptr @f2() {
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; CHECK: ret ptr @a
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%l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 0)
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ret ptr %l
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}
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; CHECK: @f3
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define ptr @f3() {
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; CHECK: ret ptr @b
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%l = call ptr @llvm.load.relative.i64(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i64 4)
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ret ptr %l
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}
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; CHECK: @f4
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define ptr @f4() {
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; CHECK: ret ptr %
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%l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 1)
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ret ptr %l
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}
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; CHECK: @f5
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define ptr @f5() {
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; CHECK: ret ptr %
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%l = call ptr @llvm.load.relative.i32(ptr zeroinitializer, i32 0)
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ret ptr %l
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}
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; CHECK: @f6
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define ptr @f6() {
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; CHECK: ret ptr %
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%l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 8)
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ret ptr %l
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}
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; CHECK: @f7
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define ptr @f7() {
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; CHECK: ret ptr %
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%l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 12)
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ret ptr %l
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}
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; CHECK: @f8
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define ptr @f8() {
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; CHECK: ret ptr %
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%l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 16)
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ret ptr %l
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}
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declare ptr @llvm.load.relative.i32(ptr, i32)
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declare ptr @llvm.load.relative.i64(ptr, i64)
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