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bf5c9cd119
Optimize trivial branches in CodeGenPrepare, which often get created from the lowering of objectsize intrinsics. Unfortunately, a number of tests were relying on llc not optimizing trivial branches, so I had to add an option to allow them to continue to test what they originally tested. This fixes <rdar://problem/8785296> and <rdar://problem/9112893>. llvm-svn: 127498
47 lines
2.6 KiB
LLVM
47 lines
2.6 KiB
LLVM
; RUN: llc < %s -mtriple=i386-apple-darwin -disable-cgp-branch-opts | grep movw | not grep {, %e}
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%struct.DBC_t = type { i32, i8*, i16, %struct.DBC_t*, i8*, i8*, i8*, i8*, i8*, %struct.DBC_t*, i32, i32, i32, i32, i8*, i8*, i8*, i8*, i8*, i32, i32, i32, i32, i32, i32, i32, i32, i16, i16, i32*, i8, i16, %struct.DRVOPT*, i16 }
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%struct.DRVOPT = type { i16, i32, i8, %struct.DRVOPT* }
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%struct.GENV_t = type { i32, i8*, i16, i8*, i8*, i32, i32, i32, i32, %struct.DBC_t*, i16 }
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%struct.pthread_mutex_t = type { i32, [40 x i8] }
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@iodbcdm_global_lock = external global %struct.pthread_mutex_t ; <%struct.pthread_mutex_t*> [#uses=1]
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define i16 @SQLDriversW(i8* %henv, i16 zeroext %fDir, i32* %szDrvDesc, i16 signext %cbDrvDescMax, i16* %pcbDrvDesc, i32* %szDrvAttr, i16 signext %cbDrvAttrMax, i16* %pcbDrvAttr) signext nounwind {
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entry:
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%tmp12 = bitcast i8* %henv to %struct.GENV_t* ; <%struct.GENV_t*> [#uses=1]
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br i1 true, label %bb28, label %bb
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bb: ; preds = %entry
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ret i16 0
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bb28: ; preds = %entry
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br i1 false, label %bb37, label %done
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bb37: ; preds = %bb28
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%tmp46 = getelementptr %struct.GENV_t* %tmp12, i32 0, i32 10 ; <i16*> [#uses=1]
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store i16 0, i16* %tmp46, align 4
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br i1 false, label %bb74, label %bb92
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bb74: ; preds = %bb37
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br label %bb92
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bb92: ; preds = %bb74, %bb37
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%tmp95180 = shl i16 %cbDrvAttrMax, 2 ; <i16> [#uses=1]
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%tmp100178 = shl i16 %cbDrvDescMax, 2 ; <i16> [#uses=1]
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%tmp113 = tail call i16 @SQLDrivers_Internal( i8* %henv, i16 zeroext %fDir, i8* null, i16 signext %tmp100178, i16* %pcbDrvDesc, i8* null, i16 signext %tmp95180, i16* %pcbDrvAttr, i8 zeroext 87 ) signext nounwind ; <i16> [#uses=1]
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br i1 false, label %done, label %bb137
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bb137: ; preds = %bb92
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ret i16 0
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done: ; preds = %bb92, %bb28
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%retcode.0 = phi i16 [ -2, %bb28 ], [ %tmp113, %bb92 ] ; <i16> [#uses=2]
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br i1 false, label %bb167, label %bb150
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bb150: ; preds = %done
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%tmp157158 = sext i16 %retcode.0 to i32 ; <i32> [#uses=1]
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tail call void @trace_SQLDriversW( i32 1, i32 %tmp157158, i8* %henv, i16 zeroext %fDir, i32* %szDrvDesc, i16 signext %cbDrvDescMax, i16* %pcbDrvDesc, i32* %szDrvAttr, i16 signext %cbDrvAttrMax, i16* %pcbDrvAttr ) nounwind
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ret i16 0
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bb167: ; preds = %done
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%tmp168 = tail call i32 @pthread_mutex_unlock( %struct.pthread_mutex_t* @iodbcdm_global_lock ) nounwind ; <i32> [#uses=0]
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ret i16 %retcode.0
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}
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declare i32 @pthread_mutex_unlock(%struct.pthread_mutex_t*)
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declare i16 @SQLDrivers_Internal(i8*, i16 zeroext , i8*, i16 signext , i16*, i8*, i16 signext , i16*, i8 zeroext ) signext nounwind
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declare void @trace_SQLDriversW(i32, i32, i8*, i16 zeroext , i32*, i16 signext , i16*, i32*, i16 signext , i16*)
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