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TheRock/compiler/amd-llvm/llvm/test/Transforms/GlobalOpt/heap-sra-phi.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

53 lines
1.8 KiB
LLVM

; RUN: opt < %s -passes=globalopt -S | FileCheck %s
target datalayout = "E-p:64:64:64-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"
;; Heap SROA has been removed. This tests we don't perform heap SROA.
; CHECK: @X =
%struct.foo = type { i32, i32 }
@X = internal global ptr null ; <ptr> [#uses=2]
define void @bar(i32 %Size) nounwind noinline {
entry:
%malloccall = tail call ptr @malloc(i64 8000000) ; <ptr> [#uses=1]
%.sub = getelementptr [1000000 x %struct.foo], ptr %malloccall, i32 0, i32 0 ; <ptr> [#uses=1]
store ptr %.sub, ptr @X, align 4
ret void
}
declare noalias ptr @malloc(i64)
define i32 @baz() nounwind readonly noinline {
bb1.thread:
%tmpLD1 = load ptr, ptr @X, align 4 ; <ptr> [#uses=1]
br label %bb1
bb1: ; preds = %bb1, %bb1.thread
%tmp = phi ptr [%tmpLD1, %bb1.thread ], [ %tmpLD2, %bb1 ] ; <i32> [#uses=2]
%i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2]
%sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %tmp3, %bb1 ] ; <i32> [#uses=1]
%tmp1 = getelementptr %struct.foo, ptr %tmp, i32 %i.0.reg2mem.0, i32 0 ; <ptr> [#uses=1]
%tmp2 = load i32, ptr %tmp1, align 4 ; <i32> [#uses=1]
%tmp6 = add i32 %tmp2, %sum.0.reg2mem.0 ; <i32> [#uses=2]
%tmp4 = getelementptr %struct.foo, ptr %tmp, i32 %i.0.reg2mem.0, i32 1 ; <ptr> [#uses=1]
%tmp5 = load i32 , ptr %tmp4
%tmp3 = add i32 %tmp5, %tmp6
%indvar.next = add i32 %i.0.reg2mem.0, 1 ; <i32> [#uses=2]
%tmpLD2 = load ptr, ptr @X, align 4 ; <ptr> [#uses=1]
%exitcond = icmp eq i32 %indvar.next, 1200 ; <i1> [#uses=1]
br i1 %exitcond, label %bb2, label %bb1
bb2: ; preds = %bb1
ret i32 %tmp3
}
define void @bam(i64 %Size) nounwind noinline #0 {
entry:
%0 = load ptr, ptr @X, align 4
ret void
}
attributes #0 = { null_pointer_is_valid }