int test(int X, short Y, float Z) {
  return (int)(X*Y+Z);
}

to:

define i32 @test(i32 %X, i16 %Y, float %Z) {
entry:
        %promote = sext i16 %Y to i32           ; <i32> [#uses=1]
        %mul = mul i32 %promote, %X             ; <i32> [#uses=1]
        %promote3 = sitofp i32 %mul to float            ; <float> [#uses=1]
        %add = add float %promote3, %Z          ; <float> [#uses=1]
        %conv = fptosi float %add to i32                ; <i32> [#uses=1]
        ret i32 %conv
}

with:

$ clang -emit-llvm t.c | llvm-as | opt -std-compile-opts | llvm-dis

llvm-svn: 39652

stuff like:

void test() {
  int *X, Y, *Z[14];

  X[Y] = 4;
}

llvm-svn: 39624

int func() {
  register int X;
  {
    int Y;

into:

define i32 @func() {
entry:
        %X = alloca i32         ; <i32*> [#uses=0]
        %Y = alloca i32         ; <i32*> [#uses=0]
        %allocapt = bitcast i32 undef to i32            ; <i32> [#uses=0]
...

llvm-svn: 39553

llvm-svn: 39550