From 536383a3548acb8664748da6698baa9d4c4c8e44 Mon Sep 17 00:00:00 2001 From: Craig Topper Date: Tue, 2 Apr 2019 00:54:22 +0000 Subject: [PATCH] [X86] Add test cases to fixup-lea.ll for optsize and no size optimization. Add +/-slow-incdec command lines We only form inc/dec in FixupLEAs under minsize today, but all other locations in the compiler for inc/dec with optsize. llvm-svn: 357446 --- llvm/test/CodeGen/X86/fixup-lea.ll | 161 ++++++++++++++++++++++++++++++++++++- 1 file changed, 160 insertions(+), 1 deletion(-) diff --git a/llvm/test/CodeGen/X86/fixup-lea.ll b/llvm/test/CodeGen/X86/fixup-lea.ll index 1864d2a..22e0d70 100644 --- a/llvm/test/CodeGen/X86/fixup-lea.ll +++ b/llvm/test/CodeGen/X86/fixup-lea.ll @@ -1,5 +1,6 @@ ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py -;RUN: llc < %s -mtriple=i686-- | FileCheck %s +;RUN: llc < %s -mtriple=i686-- -mattr=-slow-incdec | FileCheck %s -check-prefixes=CHECK,SLOW +;RUN: llc < %s -mtriple=i686-- -mattr=+slow-incdec | FileCheck %s -check-prefixes=CHECK,FAST define void @foo(i32 inreg %dns) minsize { ; CHECK-LABEL: foo: @@ -53,3 +54,161 @@ for.body: for.end: ret void } + +define void @foo_optsize(i32 inreg %dns) optsize { +; SLOW-LABEL: foo_optsize: +; SLOW: # %bb.0: # %entry +; SLOW-NEXT: xorl %ecx, %ecx +; SLOW-NEXT: decl %ecx +; SLOW-NEXT: .LBB2_1: # %for.body +; SLOW-NEXT: # =>This Inner Loop Header: Depth=1 +; SLOW-NEXT: movzwl %cx, %edx +; SLOW-NEXT: decl %ecx +; SLOW-NEXT: cmpl %eax, %edx +; SLOW-NEXT: jl .LBB2_1 +; SLOW-NEXT: # %bb.2: # %for.end +; SLOW-NEXT: retl +; +; FAST-LABEL: foo_optsize: +; FAST: # %bb.0: # %entry +; FAST-NEXT: xorl %ecx, %ecx +; FAST-NEXT: decl %ecx +; FAST-NEXT: .LBB2_1: # %for.body +; FAST-NEXT: # =>This Inner Loop Header: Depth=1 +; FAST-NEXT: movzwl %cx, %edx +; FAST-NEXT: leal -1(%ecx), %ecx +; FAST-NEXT: cmpl %eax, %edx +; FAST-NEXT: jl .LBB2_1 +; FAST-NEXT: # %bb.2: # %for.end +; FAST-NEXT: retl +entry: + br label %for.body + +for.body: + %i.05 = phi i16 [ %dec, %for.body ], [ 0, %entry ] + %dec = add i16 %i.05, -1 + %conv = zext i16 %dec to i32 + %cmp = icmp slt i32 %conv, %dns + br i1 %cmp, label %for.body, label %for.end + +for.end: + ret void +} + +define void @bar_optsize(i32 inreg %dns) optsize { +; SLOW-LABEL: bar_optsize: +; SLOW: # %bb.0: # %entry +; SLOW-NEXT: xorl %ecx, %ecx +; SLOW-NEXT: incl %ecx +; SLOW-NEXT: .LBB3_1: # %for.body +; SLOW-NEXT: # =>This Inner Loop Header: Depth=1 +; SLOW-NEXT: movzwl %cx, %edx +; SLOW-NEXT: incl %ecx +; SLOW-NEXT: cmpl %eax, %edx +; SLOW-NEXT: jl .LBB3_1 +; SLOW-NEXT: # %bb.2: # %for.end +; SLOW-NEXT: retl +; +; FAST-LABEL: bar_optsize: +; FAST: # %bb.0: # %entry +; FAST-NEXT: xorl %ecx, %ecx +; FAST-NEXT: incl %ecx +; FAST-NEXT: .LBB3_1: # %for.body +; FAST-NEXT: # =>This Inner Loop Header: Depth=1 +; FAST-NEXT: movzwl %cx, %edx +; FAST-NEXT: leal 1(%ecx), %ecx +; FAST-NEXT: cmpl %eax, %edx +; FAST-NEXT: jl .LBB3_1 +; FAST-NEXT: # %bb.2: # %for.end +; FAST-NEXT: retl +entry: + br label %for.body + +for.body: + %i.05 = phi i16 [ %inc, %for.body ], [ 0, %entry ] + %inc = add i16 %i.05, 1 + %conv = zext i16 %inc to i32 + %cmp = icmp slt i32 %conv, %dns + br i1 %cmp, label %for.body, label %for.end +for.end: + ret void +} + +define void @foo_nosize(i32 inreg %dns) { +; SLOW-LABEL: foo_nosize: +; SLOW: # %bb.0: # %entry +; SLOW-NEXT: movw $-1, %cx +; SLOW-NEXT: .p2align 4, 0x90 +; SLOW-NEXT: .LBB4_1: # %for.body +; SLOW-NEXT: # =>This Inner Loop Header: Depth=1 +; SLOW-NEXT: movzwl %cx, %edx +; SLOW-NEXT: decl %ecx +; SLOW-NEXT: cmpl %eax, %edx +; SLOW-NEXT: jl .LBB4_1 +; SLOW-NEXT: # %bb.2: # %for.end +; SLOW-NEXT: retl +; +; FAST-LABEL: foo_nosize: +; FAST: # %bb.0: # %entry +; FAST-NEXT: movw $-1, %cx +; FAST-NEXT: .p2align 4, 0x90 +; FAST-NEXT: .LBB4_1: # %for.body +; FAST-NEXT: # =>This Inner Loop Header: Depth=1 +; FAST-NEXT: movzwl %cx, %edx +; FAST-NEXT: leal -1(%ecx), %ecx +; FAST-NEXT: cmpl %eax, %edx +; FAST-NEXT: jl .LBB4_1 +; FAST-NEXT: # %bb.2: # %for.end +; FAST-NEXT: retl +entry: + br label %for.body + +for.body: + %i.05 = phi i16 [ %dec, %for.body ], [ 0, %entry ] + %dec = add i16 %i.05, -1 + %conv = zext i16 %dec to i32 + %cmp = icmp slt i32 %conv, %dns + br i1 %cmp, label %for.body, label %for.end + +for.end: + ret void +} + +define void @bar_nosize(i32 inreg %dns) { +; SLOW-LABEL: bar_nosize: +; SLOW: # %bb.0: # %entry +; SLOW-NEXT: movw $1, %cx +; SLOW-NEXT: .p2align 4, 0x90 +; SLOW-NEXT: .LBB5_1: # %for.body +; SLOW-NEXT: # =>This Inner Loop Header: Depth=1 +; SLOW-NEXT: movzwl %cx, %edx +; SLOW-NEXT: incl %ecx +; SLOW-NEXT: cmpl %eax, %edx +; SLOW-NEXT: jl .LBB5_1 +; SLOW-NEXT: # %bb.2: # %for.end +; SLOW-NEXT: retl +; +; FAST-LABEL: bar_nosize: +; FAST: # %bb.0: # %entry +; FAST-NEXT: movw $1, %cx +; FAST-NEXT: .p2align 4, 0x90 +; FAST-NEXT: .LBB5_1: # %for.body +; FAST-NEXT: # =>This Inner Loop Header: Depth=1 +; FAST-NEXT: movzwl %cx, %edx +; FAST-NEXT: leal 1(%ecx), %ecx +; FAST-NEXT: cmpl %eax, %edx +; FAST-NEXT: jl .LBB5_1 +; FAST-NEXT: # %bb.2: # %for.end +; FAST-NEXT: retl +entry: + br label %for.body + +for.body: + %i.05 = phi i16 [ %inc, %for.body ], [ 0, %entry ] + %inc = add i16 %i.05, 1 + %conv = zext i16 %inc to i32 + %cmp = icmp slt i32 %conv, %dns + br i1 %cmp, label %for.body, label %for.end +for.end: + ret void +} -- 2.7.4