llvm/test/CodeGen/Mips/seleq.ll
Eric Christopher 55a90ab4ef Add the first backend support for on demand subtarget creation
based on the Function. This is currently used to implement
mips16 support in the mips backend via the existing module
pass resetting the subtarget.

Things to note:

a) This involved running resetTargetOptions before creating a
new subtarget so that code generation options like soft-float
could be recognized when creating the new subtarget. This is
to deal with initialization code in isel lowering that only
paid attention to the initial value.

b) Many of the existing testcases weren't using the soft-float
feature correctly. I've corrected these based on the check
values assuming that was the desired behavior.

c) The mips port now pays attention to the target-cpu and
target-features strings when generating code for a particular
function. I've removed these from one function where the
requested cpu and features didn't match the check lines in
the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218492 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-26 01:44:08 +00:00

96 lines
3.0 KiB
LLVM

; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s -check-prefix=16
@t = global i32 10, align 4
@f = global i32 199, align 4
@a = global i32 1, align 4
@b = global i32 10, align 4
@c = global i32 1, align 4
@z1 = common global i32 0, align 4
@z2 = common global i32 0, align 4
@z3 = common global i32 0, align 4
@z4 = common global i32 0, align 4
define void @calc_seleq() nounwind {
entry:
%0 = load i32* @a, align 4
%1 = load i32* @b, align 4
%cmp = icmp eq i32 %0, %1
br i1 %cmp, label %cond.true, label %cond.false
cond.true: ; preds = %entry
%2 = load i32* @f, align 4
br label %cond.end
cond.false: ; preds = %entry
%3 = load i32* @t, align 4
br label %cond.end
cond.end: ; preds = %cond.false, %cond.true
%cond = phi i32 [ %2, %cond.true ], [ %3, %cond.false ]
store i32 %cond, i32* @z1, align 4
%4 = load i32* @b, align 4
%5 = load i32* @a, align 4
%cmp1 = icmp eq i32 %4, %5
br i1 %cmp1, label %cond.true2, label %cond.false3
cond.true2: ; preds = %cond.end
%6 = load i32* @f, align 4
br label %cond.end4
cond.false3: ; preds = %cond.end
%7 = load i32* @t, align 4
br label %cond.end4
cond.end4: ; preds = %cond.false3, %cond.true2
%cond5 = phi i32 [ %6, %cond.true2 ], [ %7, %cond.false3 ]
store i32 %cond5, i32* @z2, align 4
%8 = load i32* @c, align 4
%9 = load i32* @a, align 4
%cmp6 = icmp eq i32 %8, %9
br i1 %cmp6, label %cond.true7, label %cond.false8
cond.true7: ; preds = %cond.end4
%10 = load i32* @t, align 4
br label %cond.end9
cond.false8: ; preds = %cond.end4
%11 = load i32* @f, align 4
br label %cond.end9
cond.end9: ; preds = %cond.false8, %cond.true7
%cond10 = phi i32 [ %10, %cond.true7 ], [ %11, %cond.false8 ]
store i32 %cond10, i32* @z3, align 4
%12 = load i32* @a, align 4
%13 = load i32* @c, align 4
%cmp11 = icmp eq i32 %12, %13
br i1 %cmp11, label %cond.true12, label %cond.false13
cond.true12: ; preds = %cond.end9
%14 = load i32* @t, align 4
br label %cond.end14
cond.false13: ; preds = %cond.end9
%15 = load i32* @f, align 4
br label %cond.end14
cond.end14: ; preds = %cond.false13, %cond.true12
%cond15 = phi i32 [ %14, %cond.true12 ], [ %15, %cond.false13 ]
store i32 %cond15, i32* @z4, align 4
ret void
}
attributes #0 = { nounwind "target-cpu"="mips32" "target-features"="+o32,+mips32" }
; 16: cmp ${{[0-9]+}}, ${{[0-9]+}}
; 16: btnez $BB{{[0-9]+}}_{{[0-9]}}
; 16: cmp ${{[0-9]+}}, ${{[0-9]+}}
; 16: btnez $BB{{[0-9]+}}_{{[0-9]}}
; 16: cmp ${{[0-9]+}}, ${{[0-9]+}}
; 16: btnez $BB{{[0-9]+}}_{{[0-9]}}
; 16: cmp ${{[0-9]+}}, ${{[0-9]+}}
; 16: btnez $BB{{[0-9]+}}_{{[0-9]}}