Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/lsr-overflow.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children |
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; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s ; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s ; The comparison uses the pre-inc value, which could lead LSR to ; try to compute -INT64_MIN. ; CHECK: movabsq $-9223372036854775808, %rax ; CHECK: cmpq %rax, ; CHECK: sete %al declare i64 @bar() define i1 @foo() nounwind { entry: br label %for.cond.i for.cond.i: %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.cond.i ] %t = call i64 @bar() %indvar.next = add i64 %indvar, 1 %s = icmp ne i64 %indvar.next, %t br i1 %s, label %for.cond.i, label %__ABContainsLabel.exit __ABContainsLabel.exit: %cmp = icmp eq i64 %indvar, 9223372036854775807 ret i1 %cmp } define void @func_37() noreturn nounwind readonly { entry: br label %for.body for.body: ; preds = %for.inc8, %entry %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.inc8 ] %sub.i = add i64 undef, %indvar %cmp.i = icmp eq i64 %sub.i, -9223372036854775808 br i1 undef, label %for.inc8, label %for.cond4 for.cond4: ; preds = %for.cond4, %for.body br label %for.cond4 for.inc8: ; preds = %for.body %indvar.next = add i64 %indvar, 1 br label %for.body }