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- ; RUN: opt < %s -loop-reduce -S | FileCheck %s
- ; The multiply in bb2 must not be reduced to an add, as the sext causes the
- ; %1 argument to become negative after a while.
- ; CHECK: sext i8
- ; CHECK: mul i32
- ; CHECK: store i32
- target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
- target triple = "i386-apple-darwin9.6"
- @table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2]
- define i32 @main() nounwind {
- bb4.thread:
- br label %bb2
- bb2: ; preds = %bb4, %bb2, %bb4.thread
- %i.0.reg2mem.0.ph = phi i32 [ 0, %bb4.thread ], [ %i.0.reg2mem.0.ph, %bb2 ], [ %indvar.next9, %bb4 ] ; <i32> [#uses=4]
- %j.0.reg2mem.0 = phi i32 [ 0, %bb4.thread ], [ %indvar.next, %bb2 ], [ 0, %bb4 ] ; <i32> [#uses=3]
- %0 = trunc i32 %j.0.reg2mem.0 to i8 ; <i8> [#uses=1]
- %1 = sext i8 %0 to i32 ; <i32> [#uses=1]
- %2 = mul i32 %1, %i.0.reg2mem.0.ph ; <i32> [#uses=1]
- %3 = getelementptr [32 x [256 x i32]], [32 x [256 x i32]]* @table, i32 0, i32 %i.0.reg2mem.0.ph, i32 %j.0.reg2mem.0 ; <i32*> [#uses=1]
- store i32 %2, i32* %3, align 4
- %indvar.next = add i32 %j.0.reg2mem.0, 1 ; <i32> [#uses=2]
- %exitcond = icmp eq i32 %indvar.next, 256 ; <i1> [#uses=1]
- br i1 %exitcond, label %bb4, label %bb2
- bb4: ; preds = %bb2
- %indvar.next9 = add i32 %i.0.reg2mem.0.ph, 1 ; <i32> [#uses=2]
- %exitcond10 = icmp eq i32 %indvar.next9, 32 ; <i1> [#uses=1]
- br i1 %exitcond10, label %bb5, label %bb2
- bb5: ; preds = %bb4
- %4 = load i32, i32* getelementptr ([32 x [256 x i32]], [32 x [256 x i32]]* @table, i32 0, i32 9, i32 132), align 16 ; <i32> [#uses=1]
- %5 = icmp eq i32 %4, -1116 ; <i1> [#uses=1]
- br i1 %5, label %bb7, label %bb6
- bb6: ; preds = %bb5
- tail call void @abort() noreturn nounwind
- unreachable
- bb7: ; preds = %bb5
- ret i32 0
- }
- declare void @abort() noreturn nounwind
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