Remove ImmediateDominator analysis.  The same information can be obtained from DomTree.  A lot of code for
constructing ImmediateDominator is now folded into DomTree construction.

This is part of the ongoing work for PR217.

llvm-svn: 36063

Upgrade to use new Tcl exec based test harness.

llvm-svn: 36062

Convert to use the new Tcl expr based test harness.

llvm-svn: 36061

llvm-svn: 36060

Make use of the END. facility on all files > 1K so that we aren't wasting CPU
cycles searching for RUN: lines that we'll never find.

llvm-svn: 36059

llvm-svn: 36058

llvm-svn: 36057

llvm-svn: 36056

Upgrade to use new Tcl exec based test harness

llvm-svn: 36055

llvm-svn: 36054

Upgrade tests to new Tcl exec based test harness requirements.

llvm-svn: 36053

llvm-svn: 36052

the "check-one" target. This was necessitated by the change in the test
harness to fully use Tcl's "exec" function and avoid shell scripts
altogether. Consequently, to be accurate, TestRunner.sh needs to invoke the
same environment as dejagnu would, but for just a single test. That's what
the make target "check-one" does so we just invoke it here.

llvm-svn: 36051

llvm-svn: 36050

make check-one TESTONE=test/path/to/test.ll

This runs a single check in exactly the same way that dejagnu runs it.

llvm-svn: 36049

llvm-svn: 36048

llvm-svn: 36047

Convert to new test system. This exposes IsDigit.ll as failing.

llvm-svn: 36046

Conver to new test system.

llvm-svn: 36045

llvm-svn: 36044

llvm-svn: 36043

llvm-svn: 36042

llvm-svn: 36041

This sinks the two stores in this example into a single store in cond_next.  In this
case, it allows elimination of the load as well:

        store double 0.000000e+00, double* @s.3060
        %tmp3 = fcmp ogt double %tmp1, 5.000000e-01             ; <i1> [#uses=1]
        br i1 %tmp3, label %cond_true, label %cond_next
cond_true:              ; preds = %entry
        store double 1.000000e+00, double* @s.3060
        br label %cond_next
cond_next:              ; preds = %entry, %cond_true
        %tmp6 = load double* @s.3060            ; <double> [#uses=1]

This implements Transforms/InstCombine/store-merge.ll:test2

llvm-svn: 36040

llvm-svn: 36039

llvm-svn: 36038

llvm-svn: 36037

llvm-svn: 36036

llvm-svn: 36035

in the long process that will be fixing PR 217.

llvm-svn: 36034

llvm-svn: 36033

llvm-svn: 36032

llvm-svn: 36031

llvm-svn: 36030

llvm-svn: 36029

llvm-svn: 36028

Convert to new test system. This exposes test/Transforms/ConstProp/calls.ll

llvm-svn: 36027

llvm-svn: 36026

define i32 @test(float %f) {
        %tmp7 = insertelement <4 x float> undef, float %f, i32 0
        %tmp17 = bitcast <4 x float> %tmp7 to <4 x i32>
        %tmp19 = extractelement <4 x i32> %tmp17, i32 0
        ret i32 %tmp19
}

into:

define i32 @test(float %f) {
        %tmp19 = bitcast float %f to i32                ; <i32> [#uses=1]
        ret i32 %tmp19
}

On PPC, this is the difference between:

_test:
        mfspr r2, 256
        oris r3, r2, 8192
        mtspr 256, r3
        stfs f1, -16(r1)
        addi r3, r1, -16
        addi r4, r1, -32
        lvx v2, 0, r3
        stvx v2, 0, r4
        lwz r3, -32(r1)
        mtspr 256, r2
        blr

and:

_test:
        stfs f1, -4(r1)
        nop
        nop
        nop
        lwz r3, -4(r1)
        blr

llvm-svn: 36025

llvm-svn: 36024