derek.holloway
7502bf64a4
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102 lines
3.5 KiB
LLVM
102 lines
3.5 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-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:4"
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target triple = "x86_64-unknown-linux-gnu"
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define ptr addrspace(4) @f_0() {
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; CHECK-LABEL: @f_0(
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; CHECK-NEXT: ret ptr addrspace(4) getelementptr (i8, ptr addrspace(4) null, i64 50)
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;
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%result = getelementptr i8, ptr addrspace(4) null, i64 50
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ret ptr addrspace(4) %result
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}
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define ptr addrspace(3) @f_1() {
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; inttoptr is fine here since addrspace(3) is integral.
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; CHECK-LABEL: @f_1(
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; CHECK-NEXT: ret ptr addrspace(3) inttoptr (i64 50 to ptr addrspace(3))
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;
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%result = getelementptr i8, ptr addrspace(3) null, i64 50
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ret ptr addrspace(3) %result
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}
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define void @f_2(ptr %ptr0, ptr %ptr1) {
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; It is not okay to convert the load/store pair to load and store
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; integers, since pointers in address space 4 are non-integral.
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; CHECK-LABEL: @f_2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[VAL:%.*]] = load ptr addrspace(4), ptr [[PTR0:%.*]], align 8
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; CHECK-NEXT: store ptr addrspace(4) [[VAL]], ptr [[PTR1:%.*]], align 8
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; CHECK-NEXT: ret void
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;
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entry:
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%val = load ptr addrspace(4), ptr %ptr0
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store ptr addrspace(4) %val, ptr %ptr1
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ret void
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}
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define void @f_3(ptr %ptr0, ptr %ptr1) {
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; It *is* okay to convert the load/store pair to load and store
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; integers, since pointers in address space 3 are integral.
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; CHECK-LABEL: @f_3(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[VAL:%.*]] = load ptr addrspace(3), ptr [[PTR0:%.*]], align 8
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; CHECK-NEXT: store ptr addrspace(3) [[VAL]], ptr [[PTR1:%.*]], align 8
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; CHECK-NEXT: ret void
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;
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entry:
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%val = load ptr addrspace(3), ptr %ptr0
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store ptr addrspace(3) %val, ptr %ptr1
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ret void
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}
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define i64 @g(ptr %gp) {
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; CHECK-LABEL: @g(
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; CHECK-NEXT: [[DOTPRE:%.*]] = load ptr addrspace(4), ptr [[GP:%.*]], align 8
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; CHECK-NEXT: [[V74:%.*]] = call ptr addrspace(4) @alloc()
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; CHECK-NEXT: [[V75:%.*]] = addrspacecast ptr addrspace(4) [[V74]] to ptr
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; CHECK-NEXT: [[V77:%.*]] = getelementptr i8, ptr [[V75]], i64 -8
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; CHECK-NEXT: store ptr addrspace(4) [[DOTPRE]], ptr [[V77]], align 8
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; CHECK-NEXT: [[V81:%.*]] = load i64, ptr [[V77]], align 8
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; CHECK-NEXT: ret i64 [[V81]]
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;
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%.pre = load ptr addrspace(4), ptr %gp, align 8
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%v74 = call ptr addrspace(4) @alloc()
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%v75 = addrspacecast ptr addrspace(4) %v74 to ptr
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%v77 = getelementptr ptr addrspace(4), ptr %v75, i64 -1
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store ptr addrspace(4) %.pre, ptr %v77, align 8
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%v81 = load i64, ptr %v77, align 8
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ret i64 %v81
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}
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define i64 @g2(ptr addrspace(4) %gp) {
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; CHECK-LABEL: @g2(
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; CHECK-NEXT: [[DOTPRE:%.*]] = load ptr, ptr addrspace(4) [[GP:%.*]], align 8
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; CHECK-NEXT: [[V74:%.*]] = call ptr addrspace(4) @alloc()
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; CHECK-NEXT: [[V77:%.*]] = getelementptr i8, ptr addrspace(4) [[V74]], i64 -8
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; CHECK-NEXT: store ptr [[DOTPRE]], ptr addrspace(4) [[V77]], align 8
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; CHECK-NEXT: [[V81_CAST:%.*]] = ptrtoint ptr [[DOTPRE]] to i64
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; CHECK-NEXT: ret i64 [[V81_CAST]]
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;
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%.pre = load ptr, ptr addrspace(4) %gp, align 8
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%v74 = call ptr addrspace(4) @alloc()
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%v77 = getelementptr ptr, ptr addrspace(4) %v74, i64 -1
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store ptr %.pre, ptr addrspace(4) %v77, align 8
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%v81 = load i64, ptr addrspace(4) %v77, align 8
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ret i64 %v81
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}
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declare ptr addrspace(4) @alloc()
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define i64 @f_4(ptr addrspace(4) %v0) {
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; CHECK-LABEL: @f_4(
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; CHECK-NEXT: [[V6:%.*]] = call i64 @f_5(ptr addrspace(4) [[V0:%.*]])
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; CHECK-NEXT: ret i64 [[V6]]
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;
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%v6 = call i64 @f_5(ptr addrspace(4) %v0)
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ret i64 %v6
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}
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declare i64 @f_5(i64)
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