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llvm-6502/test/CodeGen/X86/2008-10-27-CoalescerBug.ll

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Re-enable register pressure aware machine licm with fixes. Hoist() may have erased the instruction during LICM so UpdateRegPressureAfter() should not reference it afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19 18:58:51 +00:00
; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+sse2 -stats |& FileCheck %s
; Now this test spills one register. But a reload in the loop is cheaper than
; the divsd so it's a win.
Remove val# defined by a remat'ed def that is now dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 23:21:01 +00:00
define fastcc void @fourn(double* %data, i32 %isign) nounwind {
Re-enable register pressure aware machine licm with fixes. Hoist() may have erased the instruction during LICM so UpdateRegPressureAfter() should not reference it afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19 18:58:51 +00:00
; CHECK: fourn
Remove val# defined by a remat'ed def that is now dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 23:21:01 +00:00
entry:
br label %bb
bb: ; preds = %bb, %entry
%indvar93 = phi i32 [ 0, %entry ], [ %idim.030, %bb ] ; <i32> [#uses=2]
%idim.030 = add i32 %indvar93, 1 ; <i32> [#uses=1]
%0 = add i32 %indvar93, 2 ; <i32> [#uses=1]
%1 = icmp sgt i32 %0, 2 ; <i1> [#uses=1]
br i1 %1, label %bb30.loopexit, label %bb
Re-enable register pressure aware machine licm with fixes. Hoist() may have erased the instruction during LICM so UpdateRegPressureAfter() should not reference it afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19 18:58:51 +00:00
; CHECK: %bb30.loopexit
; CHECK: divsd %xmm0
; CHECK: movsd %xmm0, 16(%esp)
; CHECK: .align
; CHECK-NEXT: %bb3
Remove val# defined by a remat'ed def that is now dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 23:21:01 +00:00
bb3: ; preds = %bb30.loopexit, %bb25, %bb3
%2 = load i32* null, align 4 ; <i32> [#uses=1]
%3 = mul i32 %2, 0 ; <i32> [#uses=1]
%4 = icmp slt i32 0, %3 ; <i1> [#uses=1]
br i1 %4, label %bb18, label %bb3
bb18: ; preds = %bb3
%5 = fdiv double %11, 0.000000e+00 ; <double> [#uses=1]
%6 = tail call double @sin(double %5) nounwind readonly ; <double> [#uses=1]
br label %bb24.preheader
bb22.preheader: ; preds = %bb24.preheader, %bb22.preheader
br label %bb22.preheader
bb25: ; preds = %bb24.preheader
Split the Add, Sub, and Mul instruction opcodes into separate integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04 22:49:04 +00:00
%7 = fmul double 0.000000e+00, %6 ; <double> [#uses=0]
Remove val# defined by a remat'ed def that is now dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 23:21:01 +00:00
%8 = add i32 %i3.122100, 0 ; <i32> [#uses=1]
%9 = icmp sgt i32 %8, 0 ; <i1> [#uses=1]
br i1 %9, label %bb3, label %bb24.preheader
bb24.preheader: ; preds = %bb25, %bb18
%i3.122100 = or i32 0, 1 ; <i32> [#uses=2]
%10 = icmp slt i32 0, %i3.122100 ; <i1> [#uses=1]
br i1 %10, label %bb25, label %bb22.preheader
bb30.loopexit: ; preds = %bb
Split the Add, Sub, and Mul instruction opcodes into separate integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04 22:49:04 +00:00
%11 = fmul double 0.000000e+00, 0x401921FB54442D1C ; <double> [#uses=1]
Remove val# defined by a remat'ed def that is now dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 23:21:01 +00:00
br label %bb3
}
declare double @sin(double) nounwind readonly
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