packed_struct.ll
1.62 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s | FileCheck %s
; make sure we compute the correct offset for a packed structure
;Note: codegen for this could change rendering the above checks wrong
target datalayout = "e-p:32:32"
target triple = "i686-pc-linux-gnu"
%struct.anon = type <{ i8, i32, i32, i32 }>
@foos = external global %struct.anon ; <%struct.anon*> [#uses=3]
@bara = weak global [4 x <{ i32, i8 }>] zeroinitializer ; <[4 x <{ i32, i8 }>]*> [#uses=2]
define i32 @foo() nounwind {
; CHECK-LABEL: foo:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movl foos+5, %eax
; CHECK-NEXT: addl foos+1, %eax
; CHECK-NEXT: addl foos+9, %eax
; CHECK-NEXT: retl
entry:
%tmp = load i32, i32* getelementptr (%struct.anon, %struct.anon* @foos, i32 0, i32 1) ; <i32> [#uses=1]
%tmp3 = load i32, i32* getelementptr (%struct.anon, %struct.anon* @foos, i32 0, i32 2) ; <i32> [#uses=1]
%tmp6 = load i32, i32* getelementptr (%struct.anon, %struct.anon* @foos, i32 0, i32 3) ; <i32> [#uses=1]
%tmp4 = add i32 %tmp3, %tmp ; <i32> [#uses=1]
%tmp7 = add i32 %tmp4, %tmp6 ; <i32> [#uses=1]
ret i32 %tmp7
}
define i8 @bar() nounwind {
; CHECK-LABEL: bar:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movb bara+19, %al
; CHECK-NEXT: addb bara+4, %al
; CHECK-NEXT: retl
entry:
%tmp = load i8, i8* getelementptr ([4 x <{ i32, i8 }>], [4 x <{ i32, i8 }>]* @bara, i32 0, i32 0, i32 1) ; <i8> [#uses=1]
%tmp4 = load i8, i8* getelementptr ([4 x <{ i32, i8 }>], [4 x <{ i32, i8 }>]* @bara, i32 0, i32 3, i32 1) ; <i8> [#uses=1]
%tmp5 = add i8 %tmp4, %tmp ; <i8> [#uses=1]
ret i8 %tmp5
}