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[PowerPC] Fix label address calculation for ppc32
This patch fixes calculating address of label on ppc32 (for -fPIC). Differential Revision: https://reviews.llvm.org/D46582 llvm-svn: 335043
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Strahinja Petrovic
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Jun 19, 2018
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,44 @@ | ||
; RUN: llc < %s -mtriple=powerpc-unknown-linux-gnu -relocation-model=pic | FileCheck %s | ||
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; unsigned int foo(void) { | ||
; return 0; | ||
; } | ||
; | ||
; int main() { | ||
; L: __attribute__ ((unused)); | ||
; static const unsigned int arr[] = | ||
; { | ||
; (unsigned int) &&x - (unsigned int)&&L , | ||
; (unsigned int) &&y - (unsigned int)&&L | ||
; }; | ||
; | ||
; unsigned int ret = foo(); | ||
; void* g = (void *) ((unsigned int)&&L + arr[ret]); | ||
; goto *g; | ||
; | ||
; x: | ||
; return 15; | ||
; y: | ||
; return 25; | ||
; } | ||
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define i32 @foo() local_unnamed_addr { | ||
entry: | ||
ret i32 0 | ||
} | ||
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define i32 @main() { | ||
entry: | ||
br label %L | ||
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L: ; preds = %L, %entry | ||
indirectbr i8* inttoptr (i32 add (i32 ptrtoint (i8* blockaddress(@main, %L) to i32), i32 sub (i32 ptrtoint (i8* blockaddress(@main, %return) to i32), i32 ptrtoint (i8* blockaddress(@main, %L) to i32))) to i8*), [label %return, label %L] | ||
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return: ; preds = %L | ||
ret i32 15 | ||
} | ||
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; CHECK: lwz 3, .LC0-.LTOC(30) | ||
; CHECK-NOT: li 3, .Ltmp1-.L1$pb@l | ||
; CHECK-NOT: addis 4, 30, .Ltmp1-.L1$pb@ha |