diff options
Diffstat (limited to 'test/CodeGen/X86/coalescer-dce.ll')
| -rw-r--r-- | test/CodeGen/X86/coalescer-dce.ll | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/test/CodeGen/X86/coalescer-dce.ll b/test/CodeGen/X86/coalescer-dce.ll index 8d039ac6f7b..d97d11c6695 100644 --- a/test/CodeGen/X86/coalescer-dce.ll +++ b/test/CodeGen/X86/coalescer-dce.ll @@ -4,28 +4,28 @@ target triple = "x86_64-apple-macosx10.7.0" ; This test case has a sub-register join followed by a remat: ; -; 256L %vreg2<def> = COPY %vreg7:sub_32bit<kill>; GR32:%vreg2 GR64:%vreg7 -; Considering merging %vreg2 with %vreg7:sub_32bit +; 256L %2<def> = COPY %7:sub_32bit<kill>; GR32:%2 GR64:%7 +; Considering merging %2 with %7:sub_32bit ; Cross-class to GR64. -; RHS = %vreg2 = [256d,272d:0) 0@256d -; LHS = %vreg7 = [208d,256d:0)[304L,480L:0) 0@208d -; updated: 272L %vreg0<def> = COPY %vreg7:sub_32bit<kill>; GR32:%vreg0 GR64:%vreg7 -; Joined. Result = %vreg7 = [208d,272d:0)[304L,480L:0) 0@208d +; RHS = %2 = [256d,272d:0) 0@256d +; LHS = %7 = [208d,256d:0)[304L,480L:0) 0@208d +; updated: 272L %0<def> = COPY %7:sub_32bit<kill>; GR32:%0 GR64:%7 +; Joined. Result = %7 = [208d,272d:0)[304L,480L:0) 0@208d ; -; 272L %vreg10:sub_32bit<def> = COPY %vreg7:sub_32bit<kill>, %vreg10<imp-def>; GR64:%vreg10,%vreg7 -; Considering merging %vreg7 with %vreg10 -; RHS = %vreg7 = [208d,272d:0)[304L,480L:0) 0@208d -; LHS = %vreg10 = [16d,64L:2)[64L,160L:1)[192L,240L:1)[272d,304L:3)[304L,352d:1)[352d,400d:0)[400d,400S:4) 0@352d 1@64L-phidef 2@16d-phikill 3@272d-phikill 4@400d -; Remat: %vreg10<def> = MOV64r0 %vreg10<imp-def>, %eflags<imp-def,dead>, %vreg10<imp-def>; GR64:%vreg10 -; Shrink: %vreg7 = [208d,272d:0)[304L,480L:0) 0@208d +; 272L %10:sub_32bit<def> = COPY %7:sub_32bit<kill>, %10<imp-def>; GR64:%10,%7 +; Considering merging %7 with %10 +; RHS = %7 = [208d,272d:0)[304L,480L:0) 0@208d +; LHS = %10 = [16d,64L:2)[64L,160L:1)[192L,240L:1)[272d,304L:3)[304L,352d:1)[352d,400d:0)[400d,400S:4) 0@352d 1@64L-phidef 2@16d-phikill 3@272d-phikill 4@400d +; Remat: %10<def> = MOV64r0 %10<imp-def>, %eflags<imp-def,dead>, %10<imp-def>; GR64:%10 +; Shrink: %7 = [208d,272d:0)[304L,480L:0) 0@208d ; live-in at 240L ; live-in at 416L ; live-in at 320L ; live-in at 304L -; Shrunk: %vreg7 = [208d,256d:0)[304L,480L:0) 0@208d +; Shrunk: %7 = [208d,256d:0)[304L,480L:0) 0@208d ; ; The COPY at 256L is rewritten as a partial def, and that would artificially -; extend the live range of %vreg7 to end at 256d. When the joined copy is +; extend the live range of %7 to end at 256d. When the joined copy is ; removed, -verify-coalescing complains about the dangling kill. ; ; <rdar://problem/9967101> |