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https://github.com/c64scene-ar/llvm-6502.git
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6f1819f2e6
The bitcast instruction during constant materialization was not placed correcly in the presence of phi nodes. This commit fixes the insertion point to be in the idom instead. This fixes PR18768 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201009 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
2.0 KiB
LLVM
71 lines
2.0 KiB
LLVM
; RUN: opt -S -consthoist < %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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; PR18626
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define i8* @test1(i1 %cmp, i64* %tmp) {
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entry:
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call void @foo(i8* inttoptr (i64 68719476735 to i8*))
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br i1 %cmp, label %if.end, label %return
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if.end: ; preds = %bb1
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call void @foo(i8* inttoptr (i64 68719476736 to i8*))
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br label %return
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return:
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%retval.0 = phi i8* [ null, %entry ], [ inttoptr (i64 68719476736 to i8*), %if.end ]
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store i64 1172321806, i64* %tmp
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ret i8* %retval.0
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; CHECK-LABEL: @test1
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; CHECK: entry:
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; CHECK: %const_mat = add i64 %const, 1
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; CHECK-NEXT: %1 = inttoptr i64 %const_mat to i8*
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; CHECK-NEXT: br i1 %cmp
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; CHECK: %retval.0 = phi i8* [ null, %entry ], [ %1, %if.end ]
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}
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define void @test2(i1 %cmp, i64** %tmp) {
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entry:
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call void @foo(i8* inttoptr (i64 68719476736 to i8*))
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br i1 %cmp, label %if.end, label %return
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if.end: ; preds = %bb1
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call void @foo(i8* inttoptr (i64 68719476736 to i8*))
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br label %return
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return:
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store i64* inttoptr (i64 68719476735 to i64*), i64** %tmp
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ret void
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; CHECK-LABEL: @test2
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; CHECK: return:
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; CHECK-NEXT: %const_mat = add i64 %const, -1
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; CHECK-NEXT: inttoptr i64 %const_mat to i64*
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}
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declare void @foo(i8*)
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; PR18768
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define i32 @test3(i1 %c) {
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entry:
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br i1 %c, label %if.then, label %if.end3
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if.then: ; preds = %entry
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br label %if.end3
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if.end3: ; preds = %if.then, %entry
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%d.0 = phi i32* [ inttoptr (i64 985162435264511 to i32*), %entry ], [ null, %if.then ]
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%cmp4 = icmp eq i32* %d.0, inttoptr (i64 985162435264511 to i32*)
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%cmp6 = icmp eq i32* %d.0, inttoptr (i64 985162418487296 to i32*)
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%or = or i1 %cmp4, %cmp6
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br i1 %or, label %if.then8, label %if.end9
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if.then8: ; preds = %if.end3
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ret i32 1
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if.end9: ; preds = %if.then8, %if.end3
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ret i32 undef
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}
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